
Good day Ignacio, thanks for your question. I am glad to be able to provide assistance to you today. For this, you can send a feedback to the team that is working on Edge and hopefully this feature will be available soon on the next or future update and you can provide a feedback from the browser itself by clicking on the 3 dots > Help and feedback > Send feedback. For the time being, you can check out the link below for reference with regards to the live captions on Mac.
https://support.apple.com/guide/mac-help/use-li...
___________________________________________________________
Note: This is a non-Microsoft website. The page appears to be providing accurate, safe information. Watch out for ads on the site that may advertise products frequently classified as a PUP (Potentially Unwanted Products). Thoroughly research any product advertised on the site before you decide to download and install it.
___________________________________________________________
Regards,
Paul R.