My question is, when i buy the game for PC, do i just log in with my SE acct where you usually do on the PS4? or do I have to do some type of transfer thing like Ps3 to PS4 did? Or is it just download, install, run, log in, and play?

I'll be getting my PC here before long and am wondering about this. I know for a fact I will have to buy the game again on PC but not sure of the requirements of having always played it on PS4 and transferring to PC.