LineageOS

The widest device support of any custom ROM is also its honest selling point: if your phone is too old or too obscure for GrapheneOS, this is often the only way to keep it patched and de-Googled. Just be clear-eyed that breadth costs depth. Hardening varies by maintainer and verified boot is spotty outside a few devices, so it’s better understood as a longevity and de-bloat play than a maximum-security one. Great for reviving an aging phone, wrong choice if your threat model is serious.