This link will bring you to the following explanation of tips in the Always Included℠ Pricing Package:
Effective November 17, 2020, with the Always Included℠ Pricing Package:
Beverage package gratuities and daily gratuities for Dining Service Staff, Stateroom Attendants, and other Stateroom Service Personnel are included as part of Always Included pricing. An 18% gratuity will be added to all spa & salon purchases onboard.
I interpret other Stateroom Service Personnel to include those who deliver room service orders. If I'm paying for the Always Included℠ Pricing Package which includes the above referenced tips, I'm not tipping again. As tipping is a personal decision, others are certainly welcome to tip twice.