Forgive my lack of knowledge of QD depth, but I thought that most workstation/desktop level tasks were in the low QD range (where the 900p shines). And that higher QD depth workloads (which most SSDs are benchmarked at) were more server task orientated.
Optane 900P loading tests with Star Citizen:
https://unlocked.newegg.com/article...present-intel-optane-ssd-900p-citizencon-2947
Towards the bottom they test loading times.
Here's the problem with 900P, and why the high volume market is reserved for Optane Memory and Optane DIMM.
It isn't just about having insane low QD performance. The gains will be miniscule, if the whole
ecosystem is built for storage that's orders of magnitude slower than DRAM. What you can do as a programmer becomes limited, even if your team were allowed to have different paths for HDD and SSD. You still need to make your game/program acceptable for people using HDDs, which means the game is going to be loaded into RAM as much as it can.
I think the reason Star Citizen shows any benefit is because the game and its world are so massive. I can't see many applications falling into that category. Even then, there's likely fixed time paths that can't be sped up.
I know a game that's known for absolutely ridiculous loading times on HDDs. Anno 1404. It takes minutes. When I went from a Raptor to X25-M I've noticed huge reduction in loading time for that game. Maybe Optane should be tested on that game.