Different strokes for different folks. Personally, I've tried all the major browsers on Android, Windows, and Linux, and I've always come back to Firefox, even if there are minor caveats.
If Firefox on Android is a "mess", what does that make Microsoft Edge? :- )
Does Vivaldi support add-ons/extensions on android? I don't see it mentioned on the landing page.
Granted, ad-block is the primary one and included by default in Vivaldi, but I still like there being a possibility for extensibility even if what's supported on Firefox for Android is limited.
Kiwi has become my goto Android browser, and it's not even close. Primary reason being chrome add-on support.
But it does have a high number of quirks make it through to release versions. Like tab ordering in the current version is broken, such that swiping tabs are in a different order than browsing tabs.
I've noticed those quirks too. Maybe I've just grown a tolerance for buggy software, I do tolerate a lot of idiosyncrasies these days. But I would rather deal with silly mistakes than deliberate crippling of tools I need to use.
It says something about the goals of app and especially browser design when buggy but not feature crippled consistently beats "not buggy" but constantly removing user features to add tracking and other things we never asked for, like exposing saved payment methods.
