Just reading the beginning, it looks like they're mainly complaining about proprietary OS vendors restricting users' choice in browsers through various shenanigans. Linux users (for desktop systems) don't have this problem, and for mobile, Android users can easily install Firefox (or better yet, Firefox Nightly) through the Google Play store and set it to be the default browser. Basically, if you want to have choice…
It’s only iOS/iPadOS that Apple does this with. And iOS makes up 18% of web traffic. That’s a lot, but it means 82% can use the browser they want at any time. Chrome makes up 80-odd percent of all other traffic, so the stats overall look like: Chrome: 65.6% iOS Safari: 18% All others: 16.4% Personally, I’m more concerned about Chrome than iOS.
Agreed. If the doors open, then Google will fight for the iOS browser space. And their ability to leverage all of their properties is pretty powerful here.
If Chrome takes over iOS, then that's it. No one will bother with site compatibility for anything else. Firefox's chances to stay relevant in that world will be slim.