Does any voice assistant do this right now? Genuine question, I don't actually know. It sounds useful as long as it's not invasive.
Alexa+ does, but I don't use it for anything except kitchen timers and home automation triggers, so I can't speak to how well it works in a longer conversation.
Zoom's meeting notes excels at this, Google Meet is terrible at it. Meet mishears our company name about 90% of the time; various attendee names are a coin toss.
* "this" being: context consideration in speech-to-text/transcription.