Here is the status of my wife's renewal request
USA Passport (large book, no card) renewal, routine service service but expedited mail:
04/08/2022: Mailed all materials via USPS Priority Mail envelope from suburban Chicago to Irving, Tx
04/12/2022: Envelope delivered at Irving, Tx
04/13/2022: Check cleared. Inquired and renewal was in process. Locator started with 62.
05/02/2022: Saw in USPS Informed Delivery that a package due to be delivered next day. From Passport Services Dos Tucson.
05/03/2022: New large passport book delivered. I checked the approval status on the website and it said the book would arrive by May 5.
I am out of town and I assume that this is not a NexGen passport as I did not receive one in my recent renewal. I'll update this post if it is a NexGen passport after I get back home.