Bradley Nelson

It does I play quite a bit of VR on Linux. The only think that does not work is the valve index audio output so I use Bluetooth earbuds

Valve has done a pretty good job. Probably because of their ownership model

Most of the time it is to avoid xyproblem.info

Sorry I can’t help with the proxmox stuff but it is absolutely fine to have a qcow2 image on an SSD pool. Modern SSD write endurance is so high as to be a non issue especially in the relatively tiny work loads that HA will put on it