Avatar 2 is still one of the most successful films of all time. Barbie and Oppenheimer did well as well.
I think the main problem is that Hollywood doesn’t have that many big blockbuster franchises ongoing. There aren’t that many new movies that attract viewers. Superhero movies are finished. Star Wars is mostly TV now. Hollywood hasn’t managed to find any replacement for these franchises.
I’m pretty sure “chat” means Twitch chat. Streamers usually asks “chat” for questions, and teenagers have adopted this vocabulary for everyday use.