I feel there is a serious demand for transcribed audio lectures that is hyperlinked to the right entities.
I.e you can hover over a word and it links you to the right lecture notes or the correct position in a video or something.
I really prefer reading and doing rather than solely listening.
For podcasts, udemy, YouTube, udacity I listen at 2x the speed with closed captioning (if available).
It messes with your brain. Now I can’t listen to people for >5 mins at normal human speed.