It's a chicken-and-egg problem. Apps like Slack don't want to invest time in supporting Wayland: just ask the user to switch to an X11 session! But Gnome shouldn't drop X11 support until all apps work on Wayland. In other words, we're stuck with X11 apps forever.
Someone eventually has to break the stalemate, and Fedora is usually the distro making the switch first. Its users are used to stuff like this, and it serves as a nice heads-up for app developers to get to work because it'll land in RHEL within a year or two and you can't really claim Linux support if your app doesn't work on RHEL.
Someone eventually has to break the stalemate, and Fedora is usually the distro making the switch first. Its users are used to stuff like this, and it serves as a nice heads-up for app developers to get to work because it'll land in RHEL within a year or two and you can't really claim Linux support if your app doesn't work on RHEL.