Advice Request VPN killswitch with Wireguard

[n8chavez]

So, I've been trialing several VPNs lately. I've testing out Nord, only come to find out I hate the client; they should not force users to sigh in via a browser with no VPN. I kind of think that defeats the purpose of using one at all. As a work around, I've generated ovpn files and am currently using a third-party VPN client named Viscosity. However it does not support Wireguard. Just because I'm curious, is there any way to use the official wireguard client and still use some kind of a killswitch? It's well know that the integrated killswitch in the client itself does nothing on Windows machines, since wireguard and its generic interface was initially designed for linux.