Timeline in case it helps anyone else (I found this site incredibly helpful so thank you all)
Passport printed and sent8:49am on 14 March 2022
Application approved11:49pm on 10 March 2022
Documents received4:21pm on 15 February 2022
Application received11:31am on 7 February 2022
Identity details received11:31am on 7 February 2022
mail sent to person confirming your identity1:23pm on 6 February 2022
Ask someone to confirm your identity1:14pm on 6 February 2022
Application submitted1:14pm on 6 February 2022