On android, I guess, it's smth like: heliboard, mull, eternity, tubular (a newpipe fork), antennapod, feeder, simplex, element and slightly patched mercurygram.

As for the desktop, Firefox, keepassxc, anyrun (the app launcher) and cosmic-term would probably be the GUI apps I use most often; occasionally neovide if I feel like drooling on those sick cursor animations, mpv if I want to watch stuff without distractions, or kicad if I'm into making some electronics-related pet project. Other than that, my workflow is mostly terminal-centric, so the fish shell, coreutils, neovim, moreutils -- mostly vidir for visual bulk renaming and vipe for editing piped stuff in place (for one-time things that require, say, >2 seds) --, and so on.