Hello!
The logrotate rules that are currently shipped with the package only
cover the
file /var/log/mailman3/web/mailman-web.log in that directory. So if users
configure things differently and have additional log files in the same
directory, those other files are not getting rotated at all.
For example, we've setup mailman3-web to run with gunicorn and the gunicorn
workers are logging in another file in the same directory.
It would just add a convenience to package users / mailman admins to
make it so
that all log files in that directory automatically get rotated.
Cheers!