It seems like you haven't looked into it much since it's was feasible for last 7-8 years.. Linux hosts had GPU passthrough working well before commercial softw

It seems like you haven't looked into it much since it's was feasible for last 7-8 years.. Linux hosts had GPU passthrough working well before commercial software had such options. Nowadays it's just work out-of-box with Virt-Manager that just run QEMU under KVM. It's been working for years for 99.9% of games excluding some invasive anti-cheats that ban you for VMs, but there literally only a few games that have issue with virtualization.