Watched Guardians of the Galaxy vol. 3 with the kids tonight. I edited about 20 minutes out of the movie, and it flows much better. The kids all enjoyed it, but the 5 year olds were crying like Niagara Falls during some parts. Overall, not a bad ending to the MCU for us. And this is definitely the end. We skipped most of the films since Endgame (Spider-Man excluded), and we're writing the whole thing off after this.
Farewell, MCU - it was fun. Time for us to move on.