Roku strong arms content providers all the time. Apple ID much more neutral when it comes to content providers. No, Apple does not force content providers to pay through the App Store.

Roku forced HBO Max to make a deal.

https://www.cnet.com/news/roku-hbo-max-finally-strike-deal-s...

Roku strong arms Fox

https://www.techhive.com/article/3519910/roku-fox-and-the-th...

NBCUniversal Peacock

https://awfulannouncing.com/nbc/nbcuniversal-threatens-pull-...