I have a HX 370, my 3080 + TH3P4G3 works perfectly. I have it plugged into the top right port, as that is because only the top two ports support USB4 (which is required for EGPU). I recommend going with a external display if you’re gaming as the 2.8k display (assuming you have it) is capped at ~80 fps due to bandwidth limitations.
I have AOOSTAR AG02 paired with RTX 3080 and external 4k display.
OS: Bluefin-nvidia-gdx
HW: Fwk 13 ai 300
It works more or less ok, but I still need to solve input lag problem. I don’t know if it’s wireless input devices or wayland issue yet. But I think I’m pretty close to a setup that is actually useful for gaming.