I concur with @Dah00n, it really depends on your definition of security.
Another great security-focused distro is grapheneOS[1^] and HowToGeek has a good rundown[2^] of some fundamental security configurations (albeit a bit dated).
(For comparison, I personally don't feel that "Only use Google devices" is security-forward. Quite the opposite IMHO).
Then again, if an iPhone is something you consider more or less secure by default, then the above probably does indeed cut the mustard.
Another great security-focused distro is grapheneOS[1^] and HowToGeek has a good rundown[2^] of some fundamental security configurations (albeit a bit dated).
(For comparison, I personally don't feel that "Only use Google devices" is security-forward. Quite the opposite IMHO).
Then again, if an iPhone is something you consider more or less secure by default, then the above probably does indeed cut the mustard.
[1]: https://grapheneos.org/
[2]: https://www.howtogeek.com/366653/how-to-make-android-as-secu...