Definitely not the worst Marvel movie of the last few years.
The biggest problem is that they give away the whole Red Hulk surprise from the very beginning and trailers. Without a good plot twist there’s not much to keep things interesting here.
Harrison Ford is just not good in this movie.
This movie had all of Marvel’s typical flaws— formulaic, lame villain, self-seriousness, unfunny quips, artistically and politically neutral to the extreme.
It was like a filler episode in the long-running MCU series.