@filikun You can configure your raspberry (which in this case behaves as router) to use Wireguard and to have pi-hole enabled, so your raspberry is then network wide ad blocker and VPN. It is good solution to hide traffic from your carrier, and anyone who connects on your wi-fi has this benefits. I don't use raspberry as router, but I can connect to mobile data and wi-fi without turning off Wireguard. This is different from OpenVPN, you have to reset your OpenVPN service to gain connection.