If that would be true, Chrome would never become popular either. It's not a default browser on Windows, macOS or Linux. And yet people installed it anyway to the point it became the most popular browser. So your point of 99% people not touching defaults is nonsense. Even on Android Chrome isn't the default browser - Samsung Browser is (with Samsung being by far the most popular OEM).
Android isn't iOS where you're not allowed to replace the browser at all.
Android isn't iOS where you're not allowed to replace the browser at all.