Tom is extremely popular on instagram but social media metrics only tell you so much. Not all the Rock’s movies are hits. In this day and age, it’s about the package of actor + character. No one wanted to see RDJ in a family movie where he talks to animals in his first Endgame follow-up. I think Spidey audiences cross over far more with a prospective Uncharted audience than Endgame/Doolittle did.
But Tom could just be another Chris Hemsworth who should’ve been able to make Men in Black International succeed coming off Endgame. Established star, established IP, lots of audience crossover with Thor fans (including his literal co-star from Ragnarok in a virtually identical dynamic). Even with bad reviews, that should’ve made way more than it did.