Squat depth and keeping heels on the ground

I’ve been working on regularly squatting, trying to get my knees out more and bought some weight lifting shoes. Here’s a video from a few days ago:

No, I’m not new to exercise. Until I started the bridge a few weeks ago, I could count the number of weeks in the last 15 years I didn’t run at least 20 miles on one hand and sport wise I play basetball, softball, tennis. RHR = 48 and my TDEE is 3700. I’m pretty active for a desk job, but I’m not sure what in that list would give me good mobility in general. :stuck_out_tongue: