Trademarks are allowed to be 'generic' English words, they just can't be purely descriptive of the product/service/company. You can't trademark a name like 'Computer Store' for your computer store, for example. In the cases you list, I don't think any of these purely describe the app/feature's function (these are pretty opaque names actually, except maybe Soundtrack and Aperture), so should be eligible.

'App Store', 'Multi-Touch', 'FaceID', and others that Apple claims though are definitely questionable IMO. When you have to jump through linguistic hoops to describe your product because someone's trademarked the obvious descriptive language, there's a problem. I don't know either. I guess, considering how the legal system generally works in the US, that someone would have to legally challenge their validity, and nobody wants to go against Apple in court.

To be fair I'd say most of the trademarks they claim are pretty reasonable, though: https://www.apple.com/legal/intellectual-property/trademark/...

Edit: Did a bit of looking into the App Store trademark and it looks like both Amazon and Microsoft did challenge this, but both settled out of court with unknown terms, and the trademark stands as a result.