I've been using the latest Fedora full-time for over two years without issue, and have been doing nearly all my gaming on it as well. The only gaming that doesn't work are games that deliberately use anti-cheat that doesn't support anything but Windows (typically the games run great in single player or offline, but multiplayer refuses to work). Of my Steam catalog, over 90% just works, and a large amount of that now has native Linux support thanks to the Steam Deck.

What particular issues were you experiencing?

As a counter anecdote, on my Windows installation I routinely run into "WTF" moments, such as BitLocker randomly deciding I need to enter recovery codes, the constant nagware that is OneDrive and friends, plus when I search for the same binary exe I've launched a dozen times Windows still displays "web results" first - fooling me just about every time.