Most private schools did 100% remote learning for a very short period of time, where I live most were only doing remote learning for 2 or 3 months, and then students were back to full in person classes. The public school system in contrast did 100% remote learning for 6 months and then implemented a system of A or B attendance for an additional 6 months where every other week was remote learning. As usual those able to pay for education have a huge leg up against their peers. The leg up will be substantial over the course of their lifetime.