I’m curious about this and I don’t know if we can get an exact answer but I looked something up for Netflix and they were paying AWS 1 bil per year in 2020 just for cloud computing costs. I’m guessing that’s increased since then. It’s one component but an indication that this stuff costs an insane amount of money.
BTW for all the jokes about Disney tech I don’t think they’ve skimped on this. The app is solid and the streams are well produced, particularly for a company that got into this much later than Netflix. They can get away with screwing up tech in park ops but they needed to nail it with streaming to take market share from Netflix.