I plan deploy a setup similar to the following:
My Tails PC and my custom DNS are on different subnets, all of my Internet traffic is routed through a WireGuard tunnel ending on a cloud VM (this could be Mullvad as well). The tunnel starts from a router in between my subnets and my ISP box.
My question is this : can my ISP know that I'm using Tor if they are sniffing my traffic or do they just see WireGuard things? And can my cloud provider see my Tor traffic (I think they can)?