I like to use local lan voice chat..like Teamspeak or Mumble....which worked fine on Ubuntu but for some reason on Bazzite it will not let me set push to talk button?
wayland limitation and applications not using the global hotkey portal. you can get around it on kde by allowing x11 applications to grab all keys in the background, then go into flatseal and disable the wayland socket for teamspeak/mumble and enable the x11 socket (if its disabled)
this should let the applications have working hotkeys when unfocused next time you start them.