What tool do you use to summarize video?
I have no idea if it's the best (or even a good) tool. Other commenters suggest some other tools (for both text summaries and condensed video summaries - a sort of 'highlights reel'):
https://www.platoedu.org/videos/oSCRZkSQ1CE/watch
It's not really giving summaries but gives topic/section timestamps and highlights what was discussed.
(Main focus is actually making mini-courses off of YouTube videos but I found the section summaries really useful for figuring out which parts to watch)