You're completely missing the point though.

The reason Apple is literally spending billions of dollars globally fighting against government mandates for opening their ecosystem to third-party app stores is not because of their usability, it's because they know they have an on-par product with a high profit margin and intend to keep that way instead of doing actual innovation to differentiate their products.

As you even said, there is no difference between them now, so just existing to enhance profits is not a good reason to keep doing things as they are.