I didnt fullu understand but I heard some very sad story in commemts a while back that Thunderbolt was largely impossible to do in an add-in-card fashion. Ther

I didnt fullu understand but I heard some very sad story in commemts a while back that Thunderbolt was largely impossible to do in an add-in-card fashion. There are of course some add-in cards, and many people use them successfully, but also I dont know if any of these users have multiple cards, which closer models the potential situation here. But notably these users also dont have a dedicated gpu for their thunderbolt ports! I 100% think likewise to you- the gpu obviously should have usb4 (+ ideally pcie) ports out thr back. Its also frustrating & silly how few systems have usb-pd out.