These are the kinds of things that make me move on. I don’t mind high difficulty in games as long as checkpoints are regular.
Totally agree. No matter how difficult or challenging you want to make your game, you need to include some kind of save or checkpoint mechanic. At the very least, it's about respecting the player's time.
Right now, for some strange reason, I got sucked back into doing another run through of Demon's Souls Remake. Because of DSR, I am now more open to challenging "death loop" type games like Returnal. HOWEVER, as hard, challenging, and sometimes frustrating Demon's Souls can be, I can only imagine how infuriated I would feel if there were no checkpoint and save mechanics. If, every time I died, I lost not only my soul points (experience and currency) but ALL my weapons, items, etc. AND I hard to start over from the beginning of the world, or even the beginning of the game, each time I died.
If Demon's Souls had been designed like that, I would likely have quit and given up on the game very early on. IMO, that goes beyond challenging and into frustrating territory. So, I'm glad Demon's Souls was difficult and challenging but still had save and checkpoint mechanics built in.
Hearing that Returnal lacks those has turned me off on the game, no matter how interested I was in it. If I really want to subject myself to that kind of torture experience playing a game, I will wait until it goes on sale for a good price like $40. $70 is way too high for that kind of punishing game experience.