Comment by grapheneos

LineageOS definitely doesn't have most of the privacy and security of GrapheneOS. It lags significantly behind the standard Android Open Source Project (AOSP) updates which means not having all the standard patches and protections. Many of the patches aren't backported to older releases. It also doesn't use all the standard security features. LineageOS doesn't reduce privacy and security nearly as much as many of the operating systems based on it, but it's not as good as a production build of current AOSP on an up-to-date device. GrapheneOS makes massive improvements to the privacy and security of AOSP including providing many important protections missing in AOSP such as Contact Scopes, Storage Scopes and secure paste. It also fixes many privacy and security vulnerabilities not yet addressed in AOSP. They're not at all in the same space for privacy and security.