Have you tried for non English languages?

New Microsoft Surfaces have this feature but just works for English

How is that feature accessed? Or what does Google call it so I can search for it.

Live Transcribe in the accessibility settings. AFAIK it's available on any fairly recent Android phone. I bought a Pixel tablet for no other reason but to run it -- nothing else I've tried comes close for local-only continuous transcribe-as-they-speak. (iOS has a similar feature also under accessibility; it's good but not at the same level. Of course I'd love to see an open-source solution.)

This was for English. One problem it took me a while to realize: when I switched it to transcribe a secondary language, it was not doing it on-device anymore. You can tell the difference by setting airplane mode.

There's a captioning button under the volume slider, and I think it's called "live captions" or something in settings. Just tap the button and it'll start.

https://support.google.com/accessibility/android/answer/9350...

It's the "recorder" app. It was released in 2021 I think and has been improving since the beginning.

If you elect to, the audio + transcription can be access/searched via https://recorder.google.com