I don't have AI glasses, but having a Voice Recorder app makes perfect sense. Mobile phones have them. I'm surprised that the AI glasses don't.
For suggesting new features, however, I doubt any posts in the community forum will gain traction with Meta engineering team. Is there a feedback tool in the glasses or phone app, like there is for VR headsets? If so, use it.
Edit: there's a developer community on github for Meta AI glasses, but the feedback threads there seem to be basically about the developer SDK rather than for suggesting new features.
Android developers
iOS developers