https://support.zoom.us/hc/en-us/articles/207279736-Getting-started-with-closed-captioning
https://support.zoom.us/hc/en-us/articles/115002212983
https://support.zoom.us/hc/en-us/articles/115004794983-Automatically-Transcribe-Cloud-Recordings-
Example (there are others):
https://www.3playmedia.com/solutions/services/liveautocaptioning/
https://its.umich.edu/communication/collaboration/google/update/new-live-captions-hangouts-meet