TranscriptTimestamps included
A useful note does more than repeat what you heard. It gives you a way back to the idea when you need it.
Start with one question: what am I trying to understand? That question becomes a filter. You do not need to save every sentence.
When a passage answers your question, keep the original words and its timestamp together. You can return to the video to check the context.
Then add a short note in your own words. Explain why the passage matters, or connect it to something you already know.
The result is a smaller, more useful set of notes: a few ideas, a little context, and a clear place to continue.