Method I use for simple video download(I just wanted to down video without quality concern just to check video)

I used this method today.

How to download youtube video in pc or laptop | download youtube video

Method I use for simple video download
(I just wanted to down video without quality concern just to check video subtitle)

I used this method today. No need to download any app or program.

How to download youtube video in pc or laptop | download youtube video

And this is now needed for this moment but it will be great tool for you if you like to do this subtitle work a lot professionally.
I used this program(free).

https://vrew.voyagerx.com/en/

These are Vrew’s tutorial video playlist.
Will be useful for you to learn(quite simple and intuitive).

https://www.youtube.com/watch?v=5i4U-zL3okM&list=PLNq52sbOHWgyDGPnJHNT1dmp89uodfUMR