@FireRat Please use your own branding for your own OS and remove our branding. It's not GrapheneOS.
You do not preserve the hardening of GrapheneOS or the standard security model including verified boot when you place full trust in persistent state. AOSP goes far out of the way to keep the fully trusted components of the OS to a bare minimum and substantial parts of the security model are based around that. If you fully trust persistent state and also fully trust the OS application layer and even third party apps, that's all completely destroyed. A minor vulnerability in an app is now a complete persistent compromise of the OS and the security model for verified boot and attestation are not intact to detect that.