LibreWolf is a great privacy oriented Browser for desktop. But there is no version for android or IOS . There are some like mull but they have their own problems. Mobile phones stay with us most of the day. So we need extra privacy for it.
ok but like... telemetry is not automatically bad. a vast majority of users never report bugs in software, and are trained to just click through popups. this means the bugs don't get fixed, and the crash reports don't get sent.
scrutinizing what actually gets sent from your browser is how you keep yourself safe, blocking all telemetry is how you get unpatched security holes.