Flatpaks can't open links after fresh install

[JBGruber]

Title says it. It used to work before I had to make a fresh install. Now when I click on a link in Slack or Zoom, nothing happens, as far as I can tell.

It’s mildly annoying to copy and paste, but in Zoom, I can’t log into my account, making this a bigger problem.

Unfortunatly, I have no idea how to debug this. There is a similar topic here, but the solution does not work and everything already seems correct:

❯ xdg-settings get default-web-browser
firefox.desktop

~ 
❯ pacman -Q | grep xdg-desktop
xdg-desktop-portal 1.18.2-1
xdg-desktop-portal-dde 1.0.5-5
xdg-desktop-portal-kde 5.27.9-1

(I installed xdg-desktop-portal-kde because in the other thread it looked like a wrong version of xdg-desktop-portal was the issue and I use KDE, but only had dde installed).

[ainz]

There are some interesting points in this thread, you may want to check them: https://github.com/flatpak/flatpak/issues/1508

[JBGruber]

Yes, that is exactly it:

I’ve noticed a consistency: if my first session is an X session (i3wm) links will work just fine in the slack flatpak. If I start with a Wayland session (sway) links do not work. If I subsequently start another X session without restarting links do not work. I hope this helps! (source)

When I don’t open a Wayland session, it’s all good…