Apple is a 3 trillion business that is out of growth drivers. They will need to squeeze more money out of everybody in the ecosystem to appease wall street. Or launch a new 500bn product line but I don’t think they have anything big in the pipeline.
I think the analysis in this thread is correct, Apple wants to remove the “loophole” that was originally the only way to get apps on the device.
[1] https://foundation.mozilla.org/en/blog/privacy-nightmare-on-...