re: Knee pain during squats

What is the bottom of your squat?

Are you just breaking parallel or going arse to ground? If you are going super low, I’d question if you are losing tension and your knees are lurching forward. This is why I recommend most people focus on getting a few inches below parallel and keep tension; so many people look like shite just to bounce off of their heels.

Otherwise, fully endorse addressing things already suggested. There’s likely upstream issues in your quads and downstream in your shins. Get your big toe on the ground and keep your glutes engaged. Work on ankle mobility.