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 in a browser, don't use Apple products or a Microsoft OS. And even the Microsoft OS isn't that bad these days. Apple is now the worst offender in forcing you to use your computing the device only the way they want you to.
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 in a browser, don't use Apple products or a Microsoft OS. And even the Microsoft OS isn't that bad these days. Apple is now the worst offender in forcing you to use your computing the device only the way they want you to.