What exactly is the risk of getting temporarily banned on Uber? You have to use a different taxi app? As if such a thing even exists?!? Unacceptable!!
Every app on my phone has at least one other app, usually already installed, that can replace it. This wasn't intentional, it just happened naturally. Unless all two or three apps in a category get blocked for me at the same time, this already unlikely situation is barely an inconvenience.
The key phrase there is "such services". It's not just about one problem once with Uber, it's the risk of problems like this with any service of that kind, or really any service you rely on.
If using GrapheneOS significantly increases the risk a person won't be able to use a service they rely on, that may be unacceptable.
But that's my point, what one irreplacable app/service do people rely on? The only thing that comes to my mind is messaging apps, but even there, almost everyone I need to talk to is reachable on at least one other app. I have multiple taxi apps because I compare prices and availability, like any reasonable consumer should. I have two banks, but even if I didn't, I can pay by cash or card, not just phone. If I need to make a bank transfer, I can go to a branch or do it online. I have two map and navigation apps because they have different strengths and weaknesses. My email is accessible by browser if the app breaks.
I'm not doing this on purpose, I just now scrolled through my app list looking for one app that would actually fuck me up if I lost it in an instant. There are none. And I'm not currently even running graphene or anything else, just a stock Samsung.
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If the same thing happens with the Lyft app, you may be stuck at your current location indefinitely, especially in less populated areas/late hours.
And what is preventing Lyft/Uber whatever's algorithm to have a bug and just falsely flag your account after registration? Like there is no guarantee it works on a stock android/apple device either and I'm fairly sure they have a long list of false flaggings that support has to unlock day-to-day.