A great, slightly more in depth (without being mathy) explanation of transformer models. Mostly talking about AlexNet, an image classifier from 2012. Goes over some history and has some very interesting looks under the hood.
He does use some personifying language for these models, but that's unfortunately the case for most information on the topic.
I found a YouTube link in your post. Here are links to the same video on alternative frontends that protect your privacy: