This looks like a viable competitor to the recently announced HA Voice Preview hardware. Looks like it’s sold out at this point but there will be more coming. More microphones, presence detection and a builtin amplifier to run fairly substantial speakers.
https://futureproofhomes.net/?utm_source=youtube&utm_medium=product_shelf
A unit in a main area that can do presence sensing and has good audio IO is something I would happily buy. The board is separate so you can use an ESP32 or a rPi.