I work with Levven Controls, and what they offer to home builders is smart home controls on every switch and light in the entire home during construction, but for less cost than traditional wiring. There are no wires going to switch boxes, so that labour and material cost savings is enough to offset the cost of smart controls.
I assume no wires means battery powered. How long do the batteries last? Will I need to replace the batteries in all my light switches every couple years?
Some wireless switches use the force of flipping the switch itself to power the transmission: kinetic light switches. That means you need to press a bit harder, but there’s no need to replace batteries.