Are you only able to maintain an arch when you are wearing orthotics?

When your foot is collapsed there are upstream compensations. Sounds like there is some pain when squatting.

Are you able to pass the kneeling heel to butt test and/or prone heel to butt test?

Are your quads tight?

Have you used a supernova to smash your quads?

Have you addressed the supra patella pouch?