I think apple has quite a strong reliance on using their own tools and frameworks, which is fine for macOS and iOS as they are both mature, but on web they don'

I think apple has quite a strong reliance on using their own tools and frameworks, which is fine for macOS and iOS as they are both mature, but on web they don't really have anything. The app store still seems to be running on webobjects (at least from URL structure), which hasn't been updated much in the past 10 years.