Your squats look good. You have good depth and your knees are not doing anything funny. Minor form comments would be:
- Lack of hip drive. You are rather upright and your lumbar spine extends as you lift your chest out of the bottom. Drive with the hips and keep the back tight.
- Knees and hips appear to be unlocked at all times. Overextension is not needed, but full extension at the top is good.
- Your stance appears wide. There's nothing particularly wrong with that, but something closer to shoulder width is often recommended.