The one thing that prevents me from switching my Pixel over is the lack of support for emergency services to see your location if you call the emergency number. I know this because I called twice while having GrapheneOS installed.
I do some watersports and always take my phone with me, so letting emergency services see my location is good for my safety in case I ever got into trouble on the water. I also have a PLB, but I like to have two devices for redundancy, as is best practice.