> I did a quick check with a TBT2 eGPU I have and it is recognized. We can grab some newer GPU docks and test to confirm they work. But yes should work.

> yes, tbt3/usb4 tops out at 32gbps, which is about the same as pcie gen 3 x4 - so will not be the same speed as a x16 slot on a desktop, but still plenty fast for a lot of use cases.

from the frame.work forums

so you practically have a PCIe slot/s available if you get an adapter for them