After the hype related to the Steam Deck I decided to give Pop_OS with a GPU passthrough setup another chance. I got a single card setup functional but could barely get a dual-card setup working. Problems included:
* Needed a USB input switcher and two video outputs to use it correctly. I tried Looking Glass but it doesn't work well with NVIDIA cards unless you have one of those $15 HDMI dummy plugs which are all made by sketchy Chinese vendors...
* Because I only have one USB controller, all USB 3 ports got stolen by the VM, leaving only USB 2 for Linux.
* Weird audio pops that I thought I fixed but would come back on reboot.
* Difficult to monitor certain temps.
* Random crashes during long sessions, even on low graphics settings. Hard to debug - you have to pick through both Windows and Linux logs.
* Random FPS drops, especially in LoL.
* Lived in fear of getting banned from some games (Also LoL)
* NVIDIA drivers would sometimes crash trying to rebind the cards when I closed the VM, so I had to reboot the computer anyways, might as well have dual-booted.
* Setting up OBS takes extra work.
Gaming in Linux natively was, for all intents and purposes, the same. The games I play (mostly online multiplayer) are either unavailable or unplayable.
After over two weeks of my computer being semi-functional and my friends asking me for the fifth time when I was going to be back online, I decided it wasn't worth it. I see so many people in these threads praising Linux gaming, saying it's now functional and simple to set up. They must either only play single-player indie games, know something I don't, or are being dishonest.
Still want a Steam Deck though.