Found this a really helpful forum and thread too…
From reading other stories, it does sound like the amount of time it takes to jump from one step to the next is pretty varied/random – for what it’s worth, here’s my experience:
Passport printed 12:34pm on 23 March 2022
Application approved 11:37am on 17 March 2022
Documents received 8:18am on 14 March 2022
Application received 6:23pm on 24 February 2022
Identity details received 6:23pm on 24 February 2022
Email sent to person confirming your identity 10:29am on 24 February 2022
Ask someone to confirm your identity 4:36pm on 22 February 2022
Application submitted 4:36pm on 22 February 2022
And from being printed yesterday, it arrived today (24th) around 1.30pm.
The above is for one of my kids – the other application which was completed at the same time got printed a day later and now is apparently arriving on Saturday according to TNT.