But she explains why that is different in the video.
The idea is the hotspot is an entirely separate device, that just provides Internet access/VPN access. Your not logging in to your VoIP provider or your messaging applications using that hotspot. You can also purchase the device and service anonymously making it much harder to connect to your identity to the hotspot.
This separates the baseband processor from our sensitive data that is stored on our phone. This also forces your phone to actually use the VPN. (There has been reports that Apple and Google bypass the VPN in some cases if you use a VPN on your phone.)
I have noticed the Dynamic ads are audibly different in many ways. Like higher volume or has music added. I wonder if we could use that to auto detect the ads and skip it?
Maybe add one of those dummy HDMI or Display dongles so you don’t need to connect a monitor and you can set the display resolution who whatever you want.