Form doesn’t look to bad to me. Don’t worry about the butt wink. The depth is close, but definitely not horrible.
I would suggest trying to keep your chest up a little more. While it isn’t dropping a ton, if you can keep your torso a little more vertical and jack out your knees, it will help your get a little bit lower.
Also, be honest with yourself. Are you getting to depth with lighter weights? if so, then you are just changing your form when the weight gets heavy. You need to check your ego, take the weight back, and build up your strength with a better range if motion. BUT, if you can’t even get to depth with 135 or so, then your probably have really bad mobility. Stretch, sit in the bottom of a squat for 5 - 10 minutes a day, and just work on getting comfortable in the rock bottom of a squat. It will take time but you’ll get there.