Firefox on Android mobile is also useful because it allows extensions - especially uBlock Origin (UBO), Ghostery, No script, etc. Some mobile browsers (e.g., Samsung Internet) used to allow extensions also, but they've become crap or dropped such support, so their usage has fallen.

I like Firefox (for safety) and Vivaldi (Chromium browser, it's easier to use) on Android mobile. On iOS, Safari is simple and sufficient, but I would prefer UBO there, however we all know Apple will never allow extensions for Safari.

Ever since Google moved to Manifest v3, Chrome is a no go.