Fresh B1/B2 given a Interview Waiver in 2023 ?!

Hello
Does anyone know 'if this is a new ‘drop-box’ category now provided for fresh B2 category request

A visa appointment is alloted as ’ VAC slot for OFC only’ and Visa Priority set as ‘Inetrview Waiver’ which means drop box and the appointment conformation letter lists set of documents to provide for Interview Waiver cases.

Otherwise I was under regular queue for 2 step visa appointment slots as I do not have any pre-history of any type of US visa etc.,