diff --git a/tmt/guest/__init__.py b/tmt/guest/__init__.py
index 928982def5..a7712e7f28 100644
--- a/tmt/guest/__init__.py
+++ b/tmt/guest/__init__.py
@@ -2829,7 +2829,11 @@ class GuestSshData(GuestData):
         default=DEFAULT_USER,
         option=('-u', '--user'),
         metavar='NAME',
-        help='A username to use for all guest operations.',
+        help="""
+             Username to use when connecting to the guest via SSH. Unless
+             ``become`` is used, tests and other user-provided commands
+             will be invoked under this user account.
+             """,
     )
     key: list[Path] = field(
         default_factory=list,
diff --git a/tmt/steps/provision/podman.py b/tmt/steps/provision/podman.py
index 32355c064f..9ce600a51b 100644
--- a/tmt/steps/provision/podman.py
+++ b/tmt/steps/provision/podman.py
@@ -52,7 +52,13 @@ class PodmanGuestData(tmt.guest.GuestData):
         default=DEFAULT_USER,
         option=('-u', '--user'),
         metavar='USERNAME',
-        help='Username to use for all guest operations.',
+        help="""
+             Username to pass to ``podman run`` command when starting the
+             container representing the guest. It will override ``USER``
+             directive from the image. Unless ``become`` is used, tests
+             and other user-provided commands will be invoked under this
+             user account.
+             """,
     )
     force_pull: bool = field(
         default=False,