Good suggestions as I do have degoogled phone but haven't really used f-droid at all. This may be helpful but for other occasions. It's too much work for what I was imagining.

It was more videos I am curious about but really don't wanna spend an hour listening to and wanna just scan through and register the key points in my mind to see if it's worth to dive into any particular part.

What I learned about the other tool that was shared above is that it gives the whole transcript so it doesn't take it and summarize and consolidates as I'd ideally like it to, bring it into just the keypoints. But it does translate the transcript to my native language which has me excited to share with my mom who can now "watch"/read some videos I may wanna orange or carnivore pill her with hahahaha