[arp242]

I use a eGPU via USB4/Thunderbolt (I think it's the same? Not entirely clear). Works out of the box on Linux. No real setup needed. Main downside is that removing it tends to make the system somewhat unstable and lock up (sometimes hours later) after a kernel "oops". I need to look into that because it's probably a relatively minor Linux kernel issue. But minus that: it works great.