Bricking your phone trying to install GrapheneOS is very difficult even if you try, see: https://youtu.be/ik0AiO0WtuU

GrapheneOS team had already said they won’t add this as it’s significantly less secure than keeping the phone locked or wiping the data

Google/Pixel Camera is in the GrapheneOS App Store, you don’t even need the Play Store or Google account to install and use it

That monthly active users chart can’t be right, it shows YouTube as having ~500 million monthly active users while in reality that’s ~2.6 billion