The epic battle will be X86&ARM vs Risc-V, cause fully developed, RISC-V can power mobile, desktop and specialised device, thanks to the modular design. The only draw back is the too little community and corporation efforts to do the complex development, so no battle before a long time

SherpaTTS, available on F-Droid, and usable as default text to speech, system wide.

On Firefox browser I use this extension to read pages https://addons.mozilla.org/fr/android/addon/read-aloud/