In case it’s helpful for anyone; for an adult renewal:
Application submitted/received: 11 March 2022
Old passport posted: 14 March 2022
Old passport delivered: 15 March 2022
Passport acknowledged received: 16 March 2022
Application approved: 21 March 2022
Passport printed: 23 March 2022
TNT tracking available: 28 March 2022
Delivered: 29 March 2022