I used CyanogenMod/LineageOS for the better part of a decade and switched to GrapheneOS a couple years ago and haven't looked back. When it comes to security (

I used CyanogenMod/LineageOS for the better part of a decade and switched to GrapheneOS a couple years ago and haven't looked back. When it comes to security (and privacy), GrapheneOS blows LineageOS out of the water in pretty much every way, e.g.: - Arbitrary-length encryption passphrases - General security hardening: Memory hardening, sandbox hardening etc. - Non-rooted (i.e. much higher security barriers for malicious apps to take over control over your phone) - No userdebug mode (LineageOS ROMs are often development builds which weaken the security of the OS, see e.g. https://github.com/GrapheneOS/os-issue-tracker/issues/284#issuecomment-690417436 ) - Fully secured boot chain (in other words: A thief won't be able to do much with your phone) - Sandboxing of Google services (*if* you want to use them), i.e. Google no longer has admin access to your phone - Being able to restrict internet access for certain apps (that's a huge one in my book) - Being able to grant apps access only to select contacts from your contact list (contact scopes), and only select files/folders (storage scopes) See https://grapheneos.org/features https://grapheneos.org/features for a much longer list. Now that I'm thinking about it, some of the above features have become so natural to me, that I find it wild that other AOSP-based ROMs (including Google's) don't have them. Moving away from GrapheneOS would be incredibly painful for me.