In general that's not "the Apple way". When they provide customization points like that (keyboards, notification widgets, share sheet icons) it tends to be after the 'reference implementation' has been in iOS for a few years and the problem has been well studied. Examples where it works very successfully (Android usually) help.

Content blockers are the only thing I can think of off the top of my head that haven't followed this pattern. That may be because it was a feature Apple wanted to improve the experience but didn't want the legal fight that would come with shipping their own blocker.