How about mplementing Googles Lyra

Googles AI team released a new codec that should work very well with very low bandwith requirements.
Is that somethin jitsi people would be interested in implementing eventually?

Our students are often having very bad upstream connections and the downstream isn’t much better and every little bit would help.

Mind that till some codec finds its way to the browsers, basically there is nothing we can do.
Currently, it is opus that is used and that is really low on bandwidth requirements vs quality.