Big news is OBS (the updated flatpak version) works just fine in Treeland. Lost the Mix/Min buttons on some Flatpaks. Insync, installed as a 3rd party .deb, requires "QT_QPA_PLATFORM=xcb insync start" to start, same as it did in the early days of Wayland on Plasma.

Otherwise the experience is promising, but not ready for prime time.