No, you are right. I've been complaining about his level all tournament after Anderson match, where he appeared to peak (also no wind, roof closed, low ranked player, and poor mover in Anderson). The only point that impressed me was the one that got him the break point in the 4th set, 3-3. His poor BP conversion rate and penchancy to choke serving for sets or matches is becoming troublesome. I have several examples of the latter but the most recent and egregious ones were 3rd set TBD 5-4 serving vs Berry QF of FO, 3rd set vs Nadal 5-4, 30-0 at SF of FO, 5-4 40-30 third set vs Sissy FO '20, and Wimbledon '21 1st set 5-3 vs Berry.
He won Wimbledon with a far lower level than what he showed at latter stages of AO and FO. I'm not optimistic about USO but I'm just glad he got this one.
Edit: the more you gift sets to these young guys, the more belief you give them that they can hang. That's the thing I really respect about Nadal. He steps on your throat when you're down.