A few studies have shown that the parallel squat is king for maximizing work and overloading on the muscles . High reps with low to moderate weight gives exercisers the least effective way to overload the lower body muscles. The deep squat can contribute to tight knee joints / kneecap pressure . With this in mind , would you put deep squats in your personal leg workout ?
I don’t think squats past 90 degrees of knee flexion, especially if the knees proceed anterior to the toes, are inappropriate for anyone (both genders) who isn’t a competitive power lifter. The post-patellar pressure generated during knee flexion past 90 degrees, especially under resistance overload, is dramatic, potentially leading to significant articular degeneration over time.