While I personally agree with you on desktop Firefox, Firefox on Android (or at least most user-facing versions of it), have a curated list of approved addons and it’s generally impossible or at best incredibly difficult to install any addons outside that list. Tampermonkey is included but Violentmonkey is not.
This is the way! Though I personally prefer Violentmonkey.
While I personally agree with you on desktop Firefox, Firefox on Android (or at least most user-facing versions of it), have a curated list of approved addons and it’s generally impossible or at best incredibly difficult to install any addons outside that list. Tampermonkey is included but Violentmonkey is not.
Not incredibly difficult, it just requires 5 min setup, and creating your add-on collection
If you enable developer mode in android firefox, there is option to add custom addon collection.
It is only couple of steps.
Also firefox beta/nightly has couple of additional addons by default