Granola (https://www.granola.ai/) offers no-agent meeting transcription and summarization using device audio. This seems like a natural expansion of Noteplan since the other elements of productivity and time management are already implemented and I already have NotePlan open at all times. You may be going in that direction with the voice transcription. Granola makes it more seemless to get the recording going (schedule to auto start with meeting), to end, to list atteneeds because of the google calendar integration etc.

I would prefer to have one productivity application for meetings and notes rather than two, even if it's considered an add-on.