A quick look at it has me thinking that it's a content distribution platform, and the blockchain element is that it has its own token that can be used to pay content creators. Does that sound right?
I've always used Google Camera on GOS for this reason.
It's the one Google app I use. I believe I have it sandboxed effectively, although I'll admit that I'm not knowledgeable enough to really confirm that.
Installing Google Camera to be able to have a good camera was a compromise I was prepared to make, and three years later I'm still happy with that compromise, although it might or might not be one that others would accept on their own devices.
@sneak, was there anything other than the camera about GOS that you considered a shortcoming?
Google Camera on GrapheneOS on my Pixel 5 doesn't work very well. I can take several quick pictures, then about after picture six, it starts taking several seconds per picture (the picture-taking-button grays-out and does not do anything).
This seems likely to be hardware limitation rather than software? Assuming the phone works anything like the DSLRs I've had experience with do. Photos get sent to a fast buffer when taken and then written to the slower memory in the background - initially you can take photos as fast as the buffer will accept them, but once it's full you're limited by the write speed of the main storage.