There is a yt video that I found very well done and explained very well. He goes very deep in the inner workings of javascript.

I think you will like it. It is "modern" but not a new video. It is probably about 3 years old. Still relevant. He has a udemy course for $10 bucks.

https://www.youtube.com/watch?v=Bv_5Zv5c-Ts