For about 154m², I come to approximately 90 sockets + about 20 for the basement, garage & outdoor area. We have been living here for a year now and haven’t missed any yet. Rather, we have covered some with cabinets differently than planned.
The distances between the sockets are chosen so that I never needed an extension to drill with the Hilti.
In the hallways, we have the Gira LED Schuko system which has already proven itself. (You don’t always have to turn on the light when you have to go out at night or no one falls down the stairs etc.)
Kitchen: Besides the large appliance connections (which are installed anyway) a retractable triple strip on the kitchen island and 5 Schukos on the sideboard. So, besides Jura and Kitchenaid, there is still enough space.
I deliberately did not install LAN but went with coax which is connected with appropriate multimedia sockets. So I can access phone, internet, TV, and radio from any socket.
I didn’t want a BUS system either, so I installed the Gira Astro controls for the blinds instead.
Lighting points: A mix of wall and ceiling points, with wall lighting dominating in the living room and hallways.