I see many of these logs when I run

./pants fmt ::

, without explicitly modifying files while it is running.

10:19:26.61 [INFO] Filesystem changed during run: retrying `Fmt` in 500ms...

Is this to be expected as a result of the formatter modifying files?

maybe https://github.com/pantsbuild/pants/issues/14466?

Yup, seems like it. Thanks!