

I mean, base Fedora probably is more stable.
Playing games requires an lot of extra stuff, and the kernal is more bleeding edge in nobara to keep those GPU updates (if AMD) and performance tweaks fresh and useful.
but generally speaking from my experience, Nobara is no more or less stable than anything else, windows or linux. And any issue I did rarely had was typically resolved with a reboot, and generally from a game.
No one should own an Ubisoft game. Its a company thats at the top of the list with Nintendo as far as the level of hatred and vitriol they have for their own paying customers goes.