it is true, sorry you're misinformed. ask @GrapheneOS or do some reading on your own there is nothing in grapheneos that prevents apps in the same profile from mutually choosing to communicate with each other. this is why many users use multiple profiles, particularly to segment off google play services. they have been thinking about/working on an "App Communication Scopes" feature, which would allow users to explicitly stop some apps from communicating with others, but today that does not exist ------------------------- " in a nutshell, apps can communicate with each other via "IPC" or inter-process communication. It's an important part of Android and many features rely on it, i.e. opening files with another app, share buttons, notifications, etc. It's important to note that IPC only works if apps are set up to do so. Apps cannot just arbitrarily start sending data to other apps or request data from them. Many in the community want control over whether apps can communicate with each other. An example would be Google/Pixel Camera. Many people want to use it but are afraid the app will communicate with Google Play, so they don't use it. With App Communication Scopes, we can isolate apps from others."

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App Communication Scopes? + Stock Android features? - GrapheneOS Discussion Forum

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