Aw-window-watcher: Unknown while screensaver


I’m having some troubles with Ubuntu 22.04 (Pop OS!) and ActivityWatch Version v0.12.1.

When the screensaver is active a windows called unknown is detected by aw-window-watcher sometime aw-watcher-afk claims to be not afk and redetects other running apps like thunderbird or firefox.

I couldn’t find any similiar issue here or in github.
Do you also have this problem and a worksaround ?

I suspect that there is a problem with the gnome-screensaver and the correct detection.