Google spun-off Niantic and I hear they have pretty good anti-GPS spoofing algorithms/NNs (for Pokemon Go), I wouldn't be surprised if they use the same or similar tech for GMaps.

As someone who uses a spoofer app for Pokemon Go, the anti-spoofing is pretty limited.

There is a "you can't go 500 miles in 10 seconds" style check, that checks your displacement against your previous position periodically to makes sure it's realistic,

something that makes sure your GPS is always drifting a little, like a normal phone GPS would report (which the spoofer app builds in),

and other little things such as if it has camera permissions and you take a photo in game, the location in the photo metadata matches your in game location.

I usually play in my house in the North of England and regularly spoof the app to be in London, New York, Paris Mall or Tokyo.

Interesting, guess I shouldn't have such high expectations..

But I still would think G Maps has a system to deal with spoofing; maybe they weight your data based on how reliable/valid your data is over time.

Could you run one decently sized single board computer with 15 android virtual machines instead?