This summer AMD acquired the company MEXT for their AI-powered predictive memory technology to make flash memory such as NVMe SSDs behave more like DRAM. AMD MEXT with EPYC servers allows for flash memory as DRAM tiering and uses a predictive AI engine for handling the tiering in an effective way. There is a Linux driver but this is one of the few offerings in the AMD space that isn't open-source as part of their typical open ecosystem approach...