I’ve got whole screen sharing working in sway, and I don’t dare touch it. Not sure if individual window / tab sharing is even a thing.
...I get it that Wayland is the future and all, that it has features we need as an OS to get to the next level, but I feel there should be no rush to do it, and I feel a strong push for Wayland in distros right now, even with all these little broken things all over the place.
I'm still on X11 myself for the time being as my OS doesn't support wayland properly yet (it runs but not with KDE)