Ratchet & Clank: Rift Apart peaks at less than 9k concurrent players on Steam, third worst PC launch for PlayStation game | Game World Observer

https://sh.itjust.works/post/1923106

Ratchet & Clank: Rift Apart peaks at less than 9k concurrent players on Steam, third worst PC launch for PlayStation game | Game World Observer - sh.itjust.works

The game’s original hype stemmed from it being a technical showcase for the PS5. Not exactly a selling point for the already more-powerful PC world. They also didn’t bother porting the previous game to PC before porting the sequel.
It's the first game to actually use DirectStorage for something useful (that might be impossible without it), so I think it counts as a showcase on PC as well.
*previous 14 games.