Spielberg is in his 70's. He's only got so many more films in him and he has been wildly successful. He's had the kind of success and acclaim that 99.9% of directors could only dream of. At this point in his life, he has nothing to prove and is just focused on making films he's passionate about. Maybe most people don't care about The Fabelmans (which was really good!) but he made it for himself, really, to process his feelings about his mother, his parents, his relationship with art and he's lucky to be in a position to be able to do that. I don't think he's ever going to go back to being the director he was when he was younger because he's just at a different stage in his life and career at this point and we would probably all be better off accepting that.