I don't know what xdg-portal is or how to set it up. When I searched in Google, the very first link has a bad SSL certificate (which I accepted anyway, but seems very complex at first glance), the next from Reddit didn't work and said the tutorials were all out of date.
I totally agree Zoom should fix it, but they haven't yet.
I tried to install xdg-desktop-portal with ` nix-env --install xdg-desktop-portal` but running xdg-desktop-portal does not find the binary. I'm just confused what this command does anyway.
And Zoom could, too, if they cared. (And by the way, I use Zoom in browser with Wayland when required by <obligation>, and it works fine.)
Once again, people miffed at Linux because closed source app developers are lazy and don't give two shits. (Which would be and often is a pain for plenty of other reasons than Wayland.)