Yes, I’ve noticed too. He looks older, tired, agitated, traces of gray hair appear sometimes, in certain photos taken at certain angles.
I remember years ago, Jimmy Carter aged considerably during his presidency. He looked many years older when running for re-election, compared to his appearance when he first ran for the job in 1976. The four years of the White House term can wear on certain men.
Yeah, especially incompetent dirt bags who aren't fit to lead a pack of hyenas, much less a country.