Running Fedora 38 on both desktop and laptop, both former Windows machines with NVIDIA GPU (laptop has the intel IGPU and NVIDIA DGPU). I’ve been able to run every single game I’ve tried (Elden Ring, Mass Effect Andromeda, Starcraft 2, Sea of Thieves, etc) using Steam+Proton. In some cases Proton GE was required, and on the laptop there was a special proton launch argument required for Elden Ring to work. Additionally, on Wayland there is one specific issue being worked on (explicit sync) that does cause some annoyance, flickering apps etc. But it feels like NVIDIA is catching up in terms of Linux compatibility, hang in there!