I'm never really good at this stuff, but I'll try and answer without going into spoilers. It's definitely exciting and has a lot of heartfelt moments, but I wouldn't really say it's a crowdpleaser. There's a lot of downer moments and an emphasis on both politics and a feeling of "how little we have come". I guess the best comparison is BlacKkKlansman in terms of themes, tone, and emotion, although Black Messiah is far more leftist and radical and far less action-oriented. From what I can gather, people really dug BlacKkKlansman, so I think there will definitely be an audience for this, even if this probably would have done ~25M in normal times (not a bad thing mind you).
Really, I think most people who will see this will know what they're going in to, and I think most will have a good time here.