Hmmm, I'm not sure what has changed, but the instructions I had written about earlier (from https://forum.manjaro.org/t/zoom-whiteboard-does-not-work/131178) seem to be working now. Specifically:
1. Start Zoom. 2. Run "xcompmgr -c -l0 -t0 -r0 -o.00" in a terminal. 3. Start the whiteboard. I can now draw, change colour, etc. As suggested in the Manjaro forum page, I'm thinking of putting this in my .xsession now. GI, Dov, perhaps you could try this to see if it helps.
