You can also check [1]: "through a collaboration with researchers from The University of Texas at Austin, we expose the use of GPS spoofing in active Russian combat zones, particularly Syria, for airspace denial purposes. This is a capability scarcely reported in the public domain. Using data from a scientific sensor on the International Space Station (ISS), we are able to identify ongoing activity that poses significant threats to civilian airline GPS systems"

- works best on desktop though

[1] https://www.c4reports.org/aboveusonlystars

Well, yes. It's happening. That's why there's a report about it.