With LAN, you have 1 Gbit (full duplex) at each connection. Wifi currently has 1.733 under optimal conditions but is single.
As soon as more than one device is on the network, this bandwidth is shared....
Therefore, always install enough LAN cables in new buildings.
At every location where a TV is to be placed, I would install 1-2 double sockets. That means 2-4 LAN ports. Two LAN cables or one duplex cable per socket.
Plan access points on the ceiling where the most speed is needed (living room, office, children's room...).
This way you have the faster 5 GHz network at these locations. After a few walls, only the slower 2.4 GHz network gets through.
Plan 1-2 APs per floor. It depends on the building structure, floor plan, distances, and your own requirements.
You supply the APs with power via LAN cable (POE).
There are already some posts about this in the forum.
Now you can do everything "right." Even if it only means laying the cables in the ceiling and adding more APs later.
If you don’t want anything on the ceiling, there is also the option of APs on the wall (InWall Accesspoint). Ideally, there should be as little in front of them as possible because otherwise the radiation is weakened.