Ah. I turned on WARP, then googled "what is my ip?" and it is returning the IP address that I had before turning on WARP. Is that not the intended behavior?
edit: read your other comments and see this is (in some circumstances) intended behavior. I don't think you should claim WARP is a VPN if you aren't offering privacy from the endpoint. Perhaps the app should say "your browsing traffic is now private" rather than "your internet is private."