Oh, 100%!
It is absolutely intentional that iOS Safari on iPhones does not have support for fullscreen api, for example, whereas both WatchOS (somewhat) and iPadOS do. Apple is quite anti-competitive when it comes to letting web apps utilize the full potential of modern web standards.
And they often use "industry advocates" driven psy-op tactics to manoeuvre public opinion such as the following:
[1] https://stackoverflow.com/questions/49589861/is-there-a-non-...