[Capricorn2481]

Can you elaborate? I assume they're talking about switching networks while using the same site, when you have a user fingerprint from cookies or request paths. That does make VPN usage obvious.

I have been confused by this mitigation because switching networks while using the same service is pretty much always a VPN. But maybe I'm not aware of another case where that would happen?

[miki_mq]

for example: getting into your house and your phone starts using your wi-fi instead of a mobile network (or the other way around)

[fckgw]

Using your phone on a train would be hopping from tower to tower. Going to be swapping IPs endlessly.

[Capricorn2481]

I'm very desktop minded so I didn't think of this. I forget people are using VPNs on their phone.