Optane was also a contender for the biggest fundamental shift - byte addressable persistent memory with insane endurance is simply in a different class to every other SSD technology out there. No need for a FTL. No need for a DRAM / SLC cache. Unfortunately no software really took advantage of it, OSes still provisioned it as 512/4096 byte sectors, etc. so in standard benchmarks it never really looked that compelling over a regular NVME drive. But if the access patterns align, nothing can come close. Truly a technology ahead of its time.