I have never heard of Anki used for live notes in class. I find that surprising because Anki cards are said to be good if you use them to capture quanta of understanding. While you can make cards on whatever facts or understanding statements made explicitly in class, I find it hard to believe that you would be able to create those novel long range understanding cards during class.

And you can't create those cards for existing cards. You need more comprehensive notes (like your class notes) to create those cards.