Notifications on Linux temporarily freeze the desktop window manager
This issue is related to the one asking for native notifications....
I think this deserves its own issue though. Yes, an option for native notifications would definitely fix this issue for me, since I'd immediately switch to the native notifications. But if the developers of the Teams client leave the non-native notifications as a toggleable option for example, then I think they should ultimately fix this for the non-native notifications any users who prefer that.
On my system (Arch Linux, i3wm), notifications from Microsoft Teams seem to grab focus and cause a very noticeable freeze for about a half second in any X11 app. My colleague runs Ubuntu and notices the same issue.
Sebastian Maurer commented
Same on KDE on Arch Linux. Insanely annoying, might have to switch to the unofficial client again until this is fixed :(
It doesn't really freeze the desktop for me.
the issue is that that notification takes focus when it appears, taking focus away from the application you are working in.
I have the same problem with Cinnamon desktop on ubuntu 18. I have had to disable notifications for the time being.