It’s not the gotcha that they think it is. Increasing share of Linux, steam deck or not is progress. Any development or considerations made for the SteamDeck and its Arch based OS benefit the non SteamDeck Linux gaming scene too.
Mostly a stab at Reddit PCMR, Lemmy PCMR has a different vibe.
Use Pop!_OS myself. Its “grand” / “fine”.
I’d recommend it to a new user. If however you are an existing user who’s happy I’d say not to bother.
Pop!_OS and Fedora are my usual choices for a desktop OS, unless I have reasons not to.