Pre drywall ceiling wiring recommendations

Hey everyone,

I recently had all of my ceiling drywall professionally removed (Asbestos popcorn ceiling removed).

Before I hang my new drywall, I wanted some input on things I can do before that.

The house is a flat roof, all steel construction.

Things I already plan on doing:

-Recessed lightning throughout the whole house, including bedrooms (with ceiling fans).

-Ethernet cables ran to the exterior of the house (to replace wifi cameras with PoE).

-Wiring in the living room for surround speakers and atmos.

-Dedicated 20A for living room home theater.

Thanks!