The AG02 uses an older ASM2464PD that does work with Linux over USBv4. The DEG02 uses the same chip as the AG03, the Intel JHL9480, which does not work with Linux over USBv4, only OcuLink. Honestly, I would be pessimistic about this getting fixed, since Intel seems to be pulling back on open source in general due to financial troubles.
Which is such a shame, since the mins seem to have vastly improved compared to the ASM2464PD. I was considering an AG03 as an eGPU enclosure until I read this thread: now I’m thinking of just getting one of the older ASM2464PD enclosures and/or holding on for the Framework 16 OcuLink Dev Kit.
I wish I could get in on the testing for the latter, but I’m not important enough for that, and I wouldn’t get a suitable GPU for it until July. Guess I’m only going to be able to enjoy the eGPU life after I go back to school.