Care to name some? I can't think of one PS4 exclusive that has come to the PC. Most that are on the PC were never going to be PS4 exclusives, more like timed console exclusives. This is the exact reason I own a PS4 Pro, ie Last of Us, God of War, SoC, Uncharted series, Bloodborne, Horizon Zero Dawn - the list goes on.
Tales of Zesteria PS3+PS4+Windows
Tales of Berseria PS3+PS4+Windows
FF7 Remake PS4 timed exclusive later to PC
Dragon Quest 11 PS4 + Windows (later switch release)
Dragon Quest Heroes PS4 + Windows (later switch release)
I Am Setsuna PS4 + Windows (later switch release)
Nioh PS4 + Windows
Nier: Automata PS4 + Windows
Disgaea 5 PS4 + Windows (later switch)
FFX FFX-2 HD Remaster PS3 + PS4 + Windows
FF12 Zodiac Age PS2 + PS4 + Windows
Valkyria Chronicles Remastered PS4 + Windows (switch in 2018)
World of Final Fantasy PS4+Windows
Megadimension Neptunia VII PS4+Windows
Thats not a complete list but I hope big enough to see what I mean.
In the PS3 era much more JRPGs didnt make it to PC.