I didn’t test every app created but I think you don’t know what you’re talking about. To say GrapheneOS or any similar ROM is unusable for daily driver is wild. What specific usecase do he and you have to be such a deal breaking pain? You could’ve shared what was a pain at least to be helpful for someone. It’s Android with or without Google Play. If this didn’t work for you can just try something else like iodeOS. There is always an excuse.