For me it worked ok, last year there was a problem in getting kicked out from breakout rooms but this seems to have been fixed. Audio/video is ok for me, also sending meetings and adding to calendar.
However screen sharing is impossible on gnome or kde. May have to check if somehow it’s my Intel Xe if you say screen sharing is working no problem. It doesn’t seem to work out well on arch on these DE. The flickering to clarify includes flipping from one window to the other, it’s just a mess.
If you are using a high dpi screen that should be fixable. You can scale qt or gtk apps and I believe you can even change scaling in your .local zoom folder config. zoomus.conf has a Scalefactor that can be changed.
Something along those lines can also work in general for high dpi issues.