The X window property WM_CLASS is not set on TS5 beta client which causes Gnome not being able to find the correct window and display the icon set in the .desktop file in the taskbar and other places correctly. The fix should be relatively trivial to implement.
Here is a good explanation why it should be set: https://askubuntu.com/questions/1060170/xdotool-what-are-class-and-classname-for-a-window
I’m running PopOS 21.04 with Gnome 3.38 and the TS5 beta 64 client.
I’ve created a new topic instead of posting inside one of the already existing for visibility. The issue is most likely related to
I’ve created a support ticket but was suggested to post here instead: https://support.teamspeak.com/hc/en-us/requests/49776