The F2B category moved consistently each month during the 2020 fiscal year, experienced movement in only a few months in 2021, and was frozen in 2022-23. Meanwhile, a small number of visas were issued in 2020-21. Since 2020, the F2B category has only advanced by approximately 14 months over four years, which should have been enough time to clear the backlog. This is why we are seeing VISA AVAILABILITY IN THE COMING MONTHS prediction. The data for old F2B applicants has not changed, including the number of PD (of applicants) from 2016. Hope I have cleared your covid backlog confusion