Whenever I'm doing a screen share from any app to the user on the other end can only see a black screen, I am on Ubuntu 20.04 which I directly installed from the wizard, not sure what all I can try to fix this particular issue. This is not an ubuntu issue since on other devices where I have Ubuntu as the host OS the feature works fine.
I just posted an issue where I'm having a black screen while doing vnc sessions. this might be related