Thanks. No, I had the hamstring tendon autograft. Our gym doesn't have a belt squat rack (yet), but I see them more and more on Instagram.
Our gym did do a youtube video which also pointed out the box can be a proxy for depth. I decided to try pin squats because a Barbell Logic video described them as a good alternative in cases of tendinopathy. They also said pin squats were the best of both worlds of both a tempo squat and a box squat.