So it goes from the 2013 serve stats are on par or better than 2023, to I don't see a massive difference in serve stats to 2023. If you can't see his 2023 serve is better than 2013, then there's something wrong with your vision. He's placing it better, getting more free points, hitting more aces, and he's winning more points on that 1st serve.
You seem to think his shot tolerance is worse than 2013 when he sprayed all over the place in the 2013 USO final. It was awful. If Alcaraz, who is an excellent offensive baseliner and maybe the fastest on tour, is struggling to get him out of position or off balance to draw errors from him, your opinion about his lack of shot tolerance has little weight. That absolutely has not declined.
He never lost his edge over the field once he came back and regained his form in 2018 yet you see a significant physical decline that obviously doesn't exist. If that was the case, there's no way he could be able to physically handle players that are 14, 15 and 16 years younger than him on every surface. He was #1 for most of 2012-2014 and underperformed in finals losing 5 in those 3 years. It was his mental weakness more than anything, which is why he hired Becker. Then he dominated from late 2014-2016.
So the commentators, Kyrgios, former pros, etc. are just talking up his level but not because he isn't playing well. Sure.
It was a great match at Cincy, probably the best match of the year, and if you didn't enjoy that then you should have saved your money and watched old Rafa matches on Youtube. Djokovic had an easy draw this year at USO for sure but he still was impressive in the final, and his last 4 tournaments. Your bias seems to be clouding your judgement and we're not going to agree here.