In the puzzle platformer Braid you can always rewind time, so any failure or minor mistake can be corrected by rewinding a little bit. Technically there is a fail state where you can die, but rewinding is such a basic mechanic, going back feels seamless.
It's a little sketchy but I sorta find valid the way Capcom is going about it, that they are going to sell their Mega Man gacha game as a standalone offline purchase now that the servers will shut down. At least it won't be lost to time.
This is such important work, but large gaming companies now seem to want games to stop working so people will move to the next thing. That's one of the hidden business interests on tying everything to online services.
I do hope we can still manage to maintain compatibility using emulators, virtual machines and compatibility layers. Digital media is so trivial to copy and store that letting it be lost can only happen due to complete neglect.
Me neither. PS4? Sure. PS5? Technology hasn't advanced so much for that to be likely. PS5's are huge and need a lot of cooling. It would also cost a fortune. It's not something that fits Nintendo's approach to new hardware.
I literally just replied to you about this and I don't know where you are getting it from. Games may ask for updates but games that are unplayable without downloads are very much the exception.