[stormbrew]

The USB-C ports on it are allegedly thunderbolt4 in all but name, waiting on certification: https://community.frame.work/t/thunderbolt-4/255/13

There are people in that thread saying they've run egpus off it.

[mfer]

To add to this...

USB-C is a specification and Thunderbolt is a certification. They are in process on the certification.

The processors they use support Thunderbolt and people have been using Thunderbolt accessories with it (you can see that in the forum).