I have a thing for WiFi setups. Any new home I visit, the first thing I pay attention to is "where is the router?". In many homes I visit, this is typically placed in the DB-Box near the main door, just because that is where the fibre-termination-point is. Or it's a massive six-antenna router below the TV in the living room.
I actually enjoy it a lot if a friend who just bought a new place comes to me to ask if I can give them advice for their WiFi setup. Even more so if the apartment is particularly challenging, or it is a very large house with many blindspots and bad-reception areas.
My own personal setup has changed/improved multiple times since this video was uploaded. I should share more about it soon.