Nowadays most browsing is mobile, and all mobile devices come with a high quality browser component which is effectively part of the operating system already, used pervasively by applications on the device as a component rather than a standalone browser.
Installing a browser, any browser, is already a niche thing to do for the majority of internet users today.
that sounds a lot like M$'s IE before the antitrust case, no ?
It may be true that a particular company has a stranglehold on browser choice on your particular phone, but that is completely different from having an anticompetitive strangehold on the market as a whole, which is what matters from an antitrust standpoint. I'm not the biggest fan of capitalism but the market seems to be functioning rather well. Not perfectly but well.
Just a refresher: IE had 96% market share at its peak, and Microsoft were guilty of quite a few other anticompetitive practices as well w.r.t. Windows itself, more or less literally penalizing OEMs from shipping any other desktop OS.
https://en.wikipedia.org/wiki/Browser_wars
Competition is thriving in the mobile space. Safari, Chrome, and derivatives of Chrome are competing with each other and they are well-performing, aggressively maintained and updated pieces of software.
Sure, there are plenty of technical reasons to be annoyed with either one of them. Mobile Safari sure is slow to adopt certain standards, etc. And don't get me wrong -- it is extremely regrettable whenever browser choice is restricted. It sucks, I hate it.
I virtually never open Samsung Internet only because I virtually never open any web browser. Browsers launch as a side effect of something else. For example clicking on a link inside LinkedIn, Telegram, bank app help, etc.
When that happens, if a separate app gets opened it's usually Firefox Focus that opens for me, so I guess that means the default URL handler is Firefox Focus (must have set it years ago) and it's not being changed by software updates.
And yet there are a range of choices for terminal only browsers. You've overall right, but I doubt that minority of users would let Firefox totally die any time soon.