So, just as I had written a few articles [1] about Optane persistent memory use for databases, Intel seems to be shutting down the whole thing (and moves on to CXL-accessible memory, which is somewhat like remote memory access over PCIe 5.0, memory boards disaggregated from CPUs, etc. The writing was on the wall actually, there were some successful niche use cases (for example Oracle's Exadata database appliance), but no widespread mainstream use. Terrible product naming too, Intel named regular NAND SSDs with a little bit of 3DXpoint/Optane cache in front of them "Optane Memory" - solid state disks that were called memory for some reason.
[1] https://tanelpoder.com/posts/testing-oracles-use-of-optane-p...
Edit: I'm still keeping my Optane DIMMs (called DCPMMS - data center persistent memory modules), I just love the tech adventure of having persistent RAM. Should try to write an experimental OS or something (but I also know that's not gonna happen :)