Apple has supported Chrome extension porting for at least 1 year now, and a conversion tool is built into Xcode: https://developer.apple.com/documentation/safariservices/saf...

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For videos less than 1 hour in length, I prefer https://youtubetranscript.com , then scroll to about 1/2 - 3/4 way through the transcript where youtubers generally hide their nuggets of info.

Eightify does seem better suited for long Lex Fridman/etc. type content though.