I disagree about Michael Douglas being the worst supporting actor.
Everything else I'm willing to agree might fit, but Douglas did a fine job. It's a weak film, so I won't say he did amazing, but Douglas wasn't the issue with this film.
You're already giving the Razzies more credit than they deserve. They're an unpopularity contest and they don't even pretend otherwise. They just pile on what's hot.
And Guardians 3 was supposed to happen before Endgame, until Disney jumped the gunn by firing James Gunn mid-production. As far as I'm concerned, that was a pre-Endgame movie with a long delayed release and some retcons.
I gotta say, Multiverse of Madness was REALLY good. Other than that, Guardians 3, Wandavision, Loki and Love and Thunder (I know it wasn't liked, but I enjoyed it), I really haven't enjoyed Marvel.