Why doesn't Sony have any RPGs? Looking at the bestselling single player games on PC they tend to be RPG's. Cyberpunk, The Witcher 3, BG3, Black Myth: Wukong, Elden Ring, KCD2, Hogwarts (borderline RPG, massive IP), Starfield.. Then ARPGs like Diablo 4 and Path of Exile 2. Fucking Veilguard which is labeled a flop still beat every single Sony single player game so far in terms of CCU on Steam. Although of course that IP has history on PC to boost it and was a day 1 release.
Action adventure games, linear or open world seem to do less well on PC in general. Unless you are Rockstar, but they are in a league of their own in terms of IP popularity.
All of these games (other than Starfield) are on PS5.