Android roadmap: https://developer.thunderbird.net/planning/android-roadmap

From README:

The current focus is on implementing next-word suggestions, which has become complicated/hit a snag and is taking more time than originally planned. Updates will come when this issue is resolved. Thank you for being patient.

Kdenlive

FlorisBoard

Out of all of them Iceraven has been my favorite simply because of its support for desktop extensions.

You can use more extensions on other ones as well:

https://blog.mozilla.org/addons/2020/09/29/expanded-extension-support-in-firefox-for-android-nightly/

Works on Firefox Beta, Firefox Nightly, Fennec and Mull.