Sorry for that noob question: i do not grasp the idea of vlan fully: will i still be able to connect to devices in the locked down vlan (the tv, the printer) from the devices in the “normal”, open Wifi (like my phone streaming to said tv).

Right now i have a gl-iNet router (brume 2) that uses adguard to block advertising sites (and also home phoning destinations of popular brands), but not sure if that does the trick already.

This. I literally only started to use WhatsApp and FaceBook when i moved to Spain, because otherwise it’s impossible to find, evaluate and contact any business here. Need a craftsman? Reserve a table in a restaurant? -> whatsapp

Here, people have not the slightest conscientiousness about data protection policies

It’s about time …

That’s interesting - I have a C1 (2021). Where or how do you block these updates and have it connected to your local network?