robertnovak in china vpns are banned so they can see all connections. It would look so different just in terms of what you are connecting to. There's no way to trick the apps unless virtualization is done (which isnt supported in gos) and even then with google's integrity root checks, apps will be able to know.
If could be risky.
If you have the money you could get 2 pixels, graphene and non-graphene. If you were allowed to route all connections "home" with tailscale or wireshark and then route through a pihole, you could always block some telemtry and just only use the normal pixel when out. You could route all calls through voip and keeps gos in airplane mode without a sim. It would still be risky and if somehow someone saw this as unusual, they could try to say you had bad intentions.
What you want is a phone that can also virtualize something like waydroid with integrity checks working, but to do that would require a device that could make you stand out more (mobile linux device) and waydroid probably seems like waydroid to apps so this wouldnt work well. The gos developers are interested in virtualizing aspects of gos but its very very far away.
Sometimes blending in is better. If i were in this situation I would not take gos outside. Have the normal acceptable phone, just some cheap throw away if needed item with bare min of info and then gos doesnt get used in outside more public way. Even tgis involves risks. I dont know much about china and what technology enthusiasts do there when they want to get past some filtering and dpi. This is a hard question