I mean that's kinda what multiple saves (or backing up your saves if you only have a single save slot) are for. If you want to reexperience a certain portion of the game on subsequent playthroughs, you can load up older saves. Also a lot of games do come with mission replays.

I mean I don't get why you'd want to skip everything. Like it's not even about challenge, I just straight up don't get the point. Like why play a game if you're gonna skip most of it? You can't even say it's for those who just want the story, because story is often told in gameplay.

The game is very poorly optimised on both platforms, it really depends on preference. From what I hear the performance mode on PS5 looks pretty bad but runs at a stable 60 (with quality mode running really poorly), but then I've also had to make mine look even worse to run on my laptop.

I think a problem with summoning strangers is that there is no way to communicate what you want. So like if you summon to get a bit of help but still want to fight the boss yourself only to get someone who one-shots it you'll probably not want to summon again. *insert clip of summon nuking Mohg*

I mean that's pretty much what SWTOR does. Not only does it have 8 different class stories, but republic and imperial characters have their own sidequests and such. The order they visit locations in is mostly the same, but a lot of times the actual maps on the planets are also different.