Still, now that mobile hardware comes close to being commoditized i think there's hope, maybe from an unexpected place (like the open source community ? one can dream..)
Most us of don't want a recreation of the web where companies try to "optimize" the subscription cancellation experience. Or to have multiple app stores each with exclusive apps being sold at a premium and having to manage payments separately.
Apple's rules do have a lot of real benefits for users and so you have to weigh that up against the interests of developers.
https://www.bloomberg.com/news/articles/2020-07-29/apple-con...
Depending on the product, you could be losing a significant portion of your customer base before then. For example Netflix, known for insanely good retention, loses nearly 40% of customers by month 12. [1]
[1] https://secondmeasure.com/datapoints/netflix-disney-plus-app...
"The agreement with Amazon is similar to a program Apple announced earlier this year letting select developers avoid the 30% fee in exchange for integrating with certain features. Amazon is part of that program."
Clearly for amazon, but not the same as any hypothetical negotiated private side deal with facebook.