Seems like it only works with Intel 7th gen and later.
Although there's a post on the LTT forums[0] exclaiming that Wendell managed to get it working. (although he also got Thunderbolt working before on AMD)
[0]: https://linustechtips.com/main/topic/961841-we-ran-intel-opt...
There's Optane memory, which is the one the link is referring to, it needs Intel CPUs
Then there's Optane SSDs, which works with AMD fine
Source: I'm using them on EPYC servers
Optane memory is not a traditional SSD, it's more of a disk cache, matched to the Intel CPU. While the rest of the Optane family are standard SSDs
If you follow Intel's marketing "Optane Memory" refers to the SSDs. The Optane DIMMs are called "Optane DC Persistent Memory".
The natural things to call them are "Optane drives" and "Optane memory". Don't criss-cross that!
NVMe Optane as a product just shows up as a small, fast drive. StoreMI works with it, even faster than Intel's stuff in some cases.