I applied for mine 24/3/22 and currently still waiting ( at the time the advertised max wait was 6 weeks and has now passed).
The passport office receiving your docs doesn’t mean they have scanned it in the system, for me this took 3 weeks from them receiving to scanning it in. So massive time wasted there.
I am about to approach my MP regarding this as I need my proof to work for a job interview soon and all means of communication with the passport office has not been successful.
Not sure if this is helping you or not
