I liked the movie, all the characters were portrayed well. Like most I think the reveal of Taskmaster was a bit of a waste of the character and a bit divisive, just being someone else's puppet was a bit dry. Hear me out, a possibly better reveal and use of the character would have been if they had doubled down on the double/triple agent scenario, where Taskmaster was actually controlling Dreykov, without Dreykov's knowledge, using the pheromone story device on him. This would also reveal Taskmaster as the actual control over the redroom, using it as a base to train other would be henchman and villains. Ticking the comic lore boxes of mercenary, trainer etc. This could have made it an ideal for the revenge plot/storyarc for Taskmaster against Natasha and Clint. Anyway that's my 2cents.