I can't speak for the V3, but Minisforum's AMD mini PCs (at least from the Zen 4 onwards) all have excellent Linux compatibility. I have the UM780 XTX and it's

I can't speak for the V3, but Minisforum's AMD mini PCs (at least from the Zen 4 onwards) all have excellent Linux compatibility. I have the UM780 XTX and it's been a blast using it on Linux (Arch btw). A mate has a UM790, another bought a recent Ryzen AI Max one and they've all reported excellent Linux compatibility (running Fedora-based and Arch-based distros). The only issue is the lack of regular BIOS/firmware updates. My UM780 got around 5 updates post-release, but they haven't released any new updates since last year March last year... which isn't great if you care about firmware security. In my case however it's not a big issue as it's an isolated vlan and I use mine on my for dev/test/homelab stuff.