Dicio author was active last few weeks, did a refactor and registers the app now as speech-input service - System wide STT service by nebkrid · Pull Request #161 · Stypox/dicio-android · GitHub - there are debug builds to test, I guess a new release is a few days away.
At least through the Konele keyboard and Dicio set as backend I can use it as general input to any text field. It’s Vosk based (not Whisper).