It's been awhile, the xe driver is now known to support RISCV and ARM64. AFAIK it's seems to me it should work with ppc64le too. Can anyone please confirm?
I have an Arc B580 I can plup in to test soon. Last year the A380 I had on hand dutifully reported its existence but Fedora couldn't actually initialize it, so maybe there's been progress between then and now.