Discord now properly supports screensharing on linux
Wayland and audio is fixed, but only on the canary branch for the moment, this isnt lazy either, they changed the whole screenshare flow to suit linux's permission prompts
Last I checked I could only share specific windows, not the whole screen. Later there was also an update with a window or screen selection dialogue that didn't work at all, I think. After that I stopped using it on wayland.