I'm using Wayland, Sway and Firefox combo for a few years now and it works very good, including screensharing. Don't forget to install and enable xdg-desktop-po

I'm using Wayland, Sway and Firefox combo for a few years now and it works very good, including screensharing. Don't forget to install and enable xdg-desktop-portal-wlr to get the screensharing working on wlroot-based browsers.