Hi GEBBL, I'm the Principal Lead Program Manager behind live captions in Microsoft Teams. My team and I envisioned live captions for meetings and delivered in Microsoft Teams worldwide in Dec'19. We had built it to improve inclusivity because we saw a rise in remote meetings (we couldn't have predicted COVID). We are super glad and grateful to hear that live captions have been extremely helpful and useful to you. Thank you for choosing us. Please don't hesitate to share any further feedback or comments.
Regards,
Shalendra
Disclosure - I worked at Swype and was part of the acquisition.
https://www.theverge.com/2011/10/06/confirmed-nuance-acquire...
https://techcrunch.com/2018/02/20/nuance-ends-development-of...