Amen to this.

I moved house recently and the only things I did were running CAT6 from where the internet enters the house, up to a PoE switch in the loft that then has a few Wifi6 APs connected to that.

Everything is wifi (all cameras, smart switches etc, office laptop, a single RPi4 for "projects" and so on) and all seems fine. The only device that is directly connected via ethernet is a headless gaming desktop that lives in the loft that I occasionally use for streaming games to a laptop.

But kudos for this guy if that is what he wants to do. Personally I did not enjoy doing the cable runs (especially for external-grade CAT6).