It seems like it's not so binary and it's more like kinda royalty free: https://arstechnica.com/gadgets/2019/03/thunderbolt-3-becomes-usb4-as-intels-interconnec

It seems like it's not so binary and it's more like kinda royalty free: https://arstechnica.com/gadgets/2019/03/thunderbolt-3-becomes-usb4-as-intels-interconnect-goes-royalty-free/ https://arstechnica.com/gadgets/2019/03/thunderbolt-3-become... They gave it away to usb form but maybe they won't for anything AMD wants to do?