I usually just finish it and start again - Sometimes with a different build or a different group of character companions (Dragon Age), other times I just play it again the exact same way - my issue is getting burned out before I get to the end of some games (mainly open world)

I had to reload an old save after accidentally running over a Tortoise in Far Cry 3 - couldn’t have that on my conscience.

Only if there are specific games that you want to play. If you have not played any of the PlayStation exclusives that have had PC ports then it’s probably a waste of money and will just sit there. Example - If you haven’t played Spiderman on PC and are thinking you will buy a PS5 to play Spiderman 2 - it probably wont happen.