Yes, 209th date from 1st Oct 2021 excluding holidays is 5th Aug 2022.
Check the receipt number WAC-22-209-50105 at USCIS website. It was received by them on April 28. So how come 209 was assigned, that is my question?
As per the logic given in the article it should be around 140th day - so ideally the above receipt number should be something like WAC-140-XXXXX.