You're addressing a lot more than I even attempted to address. I was really just pointing out that devices like this: https://www.hmd.com/en_us/nokia-2780-fli

You're addressing a lot more than I even attempted to address. I was really just pointing out that devices like this: https://www.hmd.com/en_us/nokia-2780-flip?sku=16WNDL11A01 https://www.hmd.com/en_us/nokia-2780-flip?sku=16WNDL11A01 and services like e.g. SMS text reminders from Internet services do no run on Android. The green is not a signifier of Android, just of non-encrypted. Or non-Apple, if you want to be less precise. (Apple devices where encryption is disabled also appear as green.)