> How many GrapheneOS users say "well when it stops working, I just move to another service, and if there is none, then I live without the service entirely".

Being prepared to be this voice is one of the reasons I'm a Graphene OS user. Another is that it helps me avoid accidentally writing code that depends on google play services. When you've got an agent doing most of the driving, it's easy to not realize that your app is broken without google, unless you're testing it on a degoogle'd device.