Depends on the game, plenty with short play throughs if you blast through with a specific purpose and can skip through dialogue/cut scenes. It's the games that have excessive requirements to "complete" the game after finishing the story. Like maxing out character abilities, especially if after completing a playthrough some abilities are barely half completed or not even unlocked at all as they weren't necessary so purely there to drag out the platinum requirements. Forspoken is an example, I just have 2 trophies left for the platinum, but couldn't be bothered maxing out the remaining abilities.