No, they did not change the renderer because of Apple. That is a complaint about Flutter, the iOS-aping widget set can't stay up with current iOS, and I don't think they have a real solution yet. There's something about pulling out the Material UI library from Flutter itself that's supposed to help (I don't quite understand why, modulo "we can make a focused team work in a package instead of in the big ol' framework and that'll be easier")

Generally, it is not young web devs fault that SwiftUI exists, and certainly not their fault it still has serious issues 7 years in. The things named in the article as not-working in SwiftUI do work in fine in the others.