For example Red Hat Enterprise Linux or SUSE Enterprise Linux.
I’m considering switching to RHEL, to get a “professional” Linux, since it’s free if you register an account, but is it worth it?
Is the experience very different from Fedora?
I tried a couple of times but prefer fedora over redhat on lab servers and desktops. Fedora is easier to upgrade between releases and you get features faster and it’s just as stable. The only time I use enterprise oses in my lab is for things that are picky about the os they run on