I have seen many discussions about the lack of 720p on web meeting SDK. It seems to be a priority feature since 2019, however there is no info on release date nor version.
Currently, the Web SDK supports receiving 720p but isn’t able to send a 720p stream to other clients. If you would like this enabled, please reach out to our team through the Developer Support Center and we’ll enable the feature on your account.
I hope that helps! Let me know if you have any questions.