https://gameluster.com/sony-may-have-just-shown-a-pc-version-of-returnal/
It looks like Returnal may be the next PC game brought over from the PS5 by Sony's newly formed PC department. It's not too surprising though I expect several of the early games to be brought to PC, such as the Demon Souls Remake, Ratchet and Clank, and others. Some online are upset about Sony expanding their software reach, for some reason, but given how surprisingly low Returnal Sold when Sony dropped that last sales dump a long time ago, this may be what the game needs to be a bigger success by reaching more players. So if you put hate for Jim Ryan aside, this can only be a good thing for Sony and it's studios.
Returnal being on PC can also take advantage of the tech upgrade, making the game even better. I felt it was a bt limited to the hardware, and not because the PS5 wasn't capable, but because it was the teams first ambitious game and it was released early in the PS5's lifecycle. So they never had a chance to really get used to the hardware and tools, but by expanding to PC, it can only be positive for the dev studio.