Oh definitely, the Steam Deck is a great example of this - the preinstalled package manager handles desktop side updates while Valve handles the Steam side updates. You could never use the package manager and know none the wiser, and likewise you could pretty much never boot into gaming mode and it’s still all handled for you via package manager. Love my Steam Deck. I’ve experienced basically the same as you, pretty much nothing I’ve thrown at it fails, unless I were to cheat and try VR or something.
The only actual thing that made me sad was I planned on using it for portable Rocksmith but there are some pretty major issues with audio, even in a Windows install, but I was pretty much expecting that since the software already has issues. But that’s fine, it does stellar emulating switch games :)