I am Oct 2019 applicant and passed test on March 18, 2021. Then received 2nd FP request in May, 2021 and background check was completed on July 8, 2021. Language, other prohibitions were marked as complete on Sep 22, 2021.
I emailed London office on Wednesday enquiring about an update on my oath schedule. I received a response today that they are processing applications based on test date. Unsure if anyone who passed test after me is already a citizen or their response was just full of complete b shit.