A while ago in November, it seems I missed a post from a user in the GamingOnLinux Discord server, noting that the Discord developers finally hooked up screen and audio sharing for Linux with Wayland.
Have you tried the update? There are comments in the article that claim discord fixed both Wayland and X11. Haven't confirmed myself, but hopefully those comments are right!
I'll probably stick with vesktop too though, I've become too attached to custom themes