c:\Windows\SystemApps\EnvironmentsApp_[bunch of letters]\EnvironmentsApp.exe
Move it, or rename it so it doesn’t run. I named mine EnvironmentsApp.exe.bak
The cliffhouse won’t load or take up memory. But VR will work fine, when you hit the VR key (whatever you have it asigned to), it’ll just jump right in.
Cliffhouse is useless anyway.