Sure, Calyx is a good choice too. Is there particular reason why you picked CalyxOS over GrapheneOS? Graphene has pretty much all of the features of Calyx and it even has better support for Google Play Services, as it just sandboxes them instead of using the microG reimplementation. That way, it passes SafetyNet checks and most banking apps work. It’s also much more secure and even used by people like Edward Snowden, as it fundamentally improves the Android security model, by hardening the Linux Kernel, SELinux/SE for Android policies and using it’s custom hardened memory allocator that was ported from OpenBSD. Calyx is definitely much better than the Stock OS or other ROMs like LineageOS, but I think GrapheneOS is far superior.