H-1B & H4 drop box appointment together

Hello. I have scheduled an appointment for my H-1B renewal. I added my spouse as a dependent (for H-4) and we both qualified for interview waiver and have a single drop box appointment for both of us. But my spouse has never applied for a US visa before and she has not been ten-printed yet.
Does she not need to be ten-printed in advance and does she not need an interview? Or is it different in the new system?
Not sure how she was eligible for drop box. Don’t want to end up going there and find out she is not eligible.