diff --git a/changelogs/fragments/11771-incus-machinectl-run0-become-pty.yml b/changelogs/fragments/11771-incus-machinectl-run0-become-pty.yml
new file mode 100644
index 0000000000..84c10a4c42
--- /dev/null
+++ b/changelogs/fragments/11771-incus-machinectl-run0-become-pty.yml
@@ -0,0 +1,5 @@
+bugfixes:
+  - incus connection plugin - work when the active become plugin sets ``require_tty`` instead of failing silently (https://github.com/ansible-collections/community.general/pull/11771).
+  - machinectl become plugin - prevent printing ANSI terminal color sequences (https://github.com/ansible-collections/community.general/pull/11771).
+  - run0 become plugin - prevent printing ANSI terminal color sequences (https://github.com/ansible-collections/community.general/pull/11771).
+  - run0 become plugin - mark the plugin as incompatible with connection pipelining (see https://github.com/ansible/ansible/issues/81254, https://github.com/ansible-collections/community.general/pull/11771).
diff --git a/plugins/become/machinectl.py b/plugins/become/machinectl.py
index 26a8f2bc5a..11fdbe92ff 100644
--- a/plugins/become/machinectl.py
+++ b/plugins/become/machinectl.py
@@ -124,7 +124,10 @@ class BecomeModule(BecomeBase):
 
         flags = self.get_option("become_flags")
         user = self.get_option("become_user")
-        return f"{become} -q shell {flags} {user}@ {self._build_success_command(cmd, shell)}"
+        # SYSTEMD_COLORS=0 stops machinectl from appending ANSI reset
+        # sequences (ESC[0m, ESC[J) after the child exits, which would
+        # otherwise land after the module JSON and break result parsing.
+        return f"SYSTEMD_COLORS=0 {become} -q shell {flags} {user}@ {self._build_success_command(cmd, shell)}"
 
     def check_success(self, b_output):
         b_output = self.remove_ansi_codes(b_output)
diff --git a/plugins/become/run0.py b/plugins/become/run0.py
index 171be87958..dd46b2d24b 100644
--- a/plugins/become/run0.py
+++ b/plugins/become/run0.py
@@ -60,6 +60,8 @@ options:
     type: string
 notes:
   - This plugin only works when a C(polkit) rule is in place.
+  - This become plugin does not work when connection pipelining is enabled. With ansible-core 2.19+, using it automatically
+    disables pipelining. On ansible-core 2.18 and before, pipelining must explicitly be disabled by the user.
 """
 
 EXAMPLES = r"""
@@ -91,6 +93,10 @@ class BecomeModule(BecomeBase):
     success = ("==== AUTHENTICATION COMPLETE ====",)
     require_tty = True  # see https://github.com/ansible-collections/community.general/issues/6932
 
+    # See https://github.com/ansible/ansible/issues/81254,
+    # https://github.com/ansible/ansible/pull/78111
+    pipelining = False
+
     @staticmethod
     def remove_ansi_codes(line):
         return ansi_color_codes.sub(b"", line)
@@ -105,7 +111,11 @@ class BecomeModule(BecomeBase):
         flags = self.get_option("become_flags")
         user = self.get_option("become_user")
 
-        return f"{become} --user={user} {flags} {self._build_success_command(cmd, shell)}"
+        # SYSTEMD_COLORS=0 stops run0 from emitting terminal control
+        # sequences (window title OSC, ANSI reset) around the child
+        # command, which would otherwise corrupt the module JSON and
+        # break result parsing.
+        return f"SYSTEMD_COLORS=0 {become} --user={user} {flags} {self._build_success_command(cmd, shell)}"
 
     def check_success(self, b_output):
         b_output = self.remove_ansi_codes(b_output)
diff --git a/plugins/connection/incus.py b/plugins/connection/incus.py
index ea3356ffd6..5fe8523d03 100644
--- a/plugins/connection/incus.py
+++ b/plugins/connection/incus.py
@@ -131,12 +131,18 @@ class Connection(ConnectionBase):
     def _build_command(self, cmd) -> list[str]:
         """build the command to execute on the incus host"""
 
+        # Force pseudo-terminal allocation if the active become plugin
+        # requires one (e.g. community.general.machinectl), otherwise the
+        # become helper runs without a controlling tty and silently fails.
+        require_tty = self.become is not None and getattr(self.become, "require_tty", False)
+
         exec_cmd: list[str] = [
             self._incus_cmd,
             "--project",
             self.get_option("project"),
             "exec",
             *(["-T"] if getattr(self._shell, "_IS_WINDOWS", False) else []),
+            *(["-t"] if require_tty and not getattr(self._shell, "_IS_WINDOWS", False) else []),
             f"{self.get_option('remote')}:{self._instance()}",
             "--",
         ]
diff --git a/tests/unit/plugins/become/test_machinectl.py b/tests/unit/plugins/become/test_machinectl.py
new file mode 100644
index 0000000000..d81f6c45ee
--- /dev/null
+++ b/tests/unit/plugins/become/test_machinectl.py
@@ -0,0 +1,64 @@
+# Copyright (c) 2026 Ansible Project
+#
+# GNU General Public License v3.0+ (see LICENSES/GPL-3.0-or-later.txt or https://www.gnu.org/licenses/gpl-3.0.txt)
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+from __future__ import annotations
+
+import re
+
+from ansible import context
+
+from .helper import call_become_plugin
+
+
+def test_machinectl_basic(mocker, parser, reset_cli_args):
+    options = parser.parse_args([])
+    context._init_global_context(options)
+
+    default_cmd = "/bin/foo"
+    default_exe = "/bin/sh"
+    machinectl_exe = "machinectl"
+
+    success = "BECOME-SUCCESS-.+?"
+
+    task = {
+        "become_method": "community.general.machinectl",
+        "become_user": "root",
+    }
+    var_options = {}
+    cmd = call_become_plugin(task, var_options, cmd=default_cmd, executable=default_exe)
+    assert (
+        re.match(
+            f"SYSTEMD_COLORS=0 {machinectl_exe} -q shell  root@ {default_exe} -c 'echo {success}; {default_cmd}'",
+            cmd,
+        )
+        is not None
+    )
+
+
+def test_machinectl_flags(mocker, parser, reset_cli_args):
+    options = parser.parse_args([])
+    context._init_global_context(options)
+
+    default_cmd = "/bin/foo"
+    default_exe = "/bin/sh"
+    machinectl_exe = "machinectl"
+    machinectl_flags = "--setenv=FOO=bar"
+
+    success = "BECOME-SUCCESS-.+?"
+
+    task = {
+        "become_method": "community.general.machinectl",
+        "become_user": "root",
+        "become_flags": machinectl_flags,
+    }
+    var_options = {}
+    cmd = call_become_plugin(task, var_options, cmd=default_cmd, executable=default_exe)
+    assert (
+        re.match(
+            f"SYSTEMD_COLORS=0 {machinectl_exe} -q shell --setenv=FOO=bar root@ {default_exe} -c 'echo {success}; {default_cmd}'",
+            cmd,
+        )
+        is not None
+    )
diff --git a/tests/unit/plugins/become/test_run0.py b/tests/unit/plugins/become/test_run0.py
index 01c9b026bc..a36eee6fbd 100644
--- a/tests/unit/plugins/become/test_run0.py
+++ b/tests/unit/plugins/become/test_run0.py
@@ -29,7 +29,7 @@ def test_run0_basic(mocker, parser, reset_cli_args):
     cmd = call_become_plugin(task, var_options, cmd=default_cmd, executable=default_exe)
     assert (
         re.match(
-            f"{run0_exe} --user=root  {default_exe} -c 'echo {success}; {default_cmd}'",
+            f"SYSTEMD_COLORS=0 {run0_exe} --user=root  {default_exe} -c 'echo {success}; {default_cmd}'",
             cmd,
         )
         is not None
@@ -55,7 +55,7 @@ def test_run0_flags(mocker, parser, reset_cli_args):
     cmd = call_become_plugin(task, var_options, cmd=default_cmd, executable=default_exe)
     assert (
         re.match(
-            f"{run0_exe} --user=root --nice=15 {default_exe} -c 'echo {success}; {default_cmd}'",
+            f"SYSTEMD_COLORS=0 {run0_exe} --user=root --nice=15 {default_exe} -c 'echo {success}; {default_cmd}'",
             cmd,
         )
         is not None