Laptops are harder because they rely on more proprietary hardware and need more advanced power management.

Gaming is mostly respectable. The biggest exception is multiplayer games deliberately blocking Linux because it doesn't allow them to install their rootkit anticheat.

I use nobara, which has some nvidia focused tweaks automatically handled for you, and has largely been pretty smooth. However, you should know that there's a real possibility of needing to roll back, drop to the command line, or make some other tweak to resolve driver issues. It's not a regular occurrence (and both AMD and Nvidia have also borked windows releases), but maintainers dealing with Nvjdia have been frustrated with some of their decisions in the past and still have to jump through hoops sometimes. Some distros more targeted at casual users do a decent job of abstracting it away though.