It's a bit ironic to think Apple takes security seriously when they infamously delivered ridiculous bugs like 2017 High Sierra root login, which they fixed and then accidentally unfixed again.

What we're seeing is marketing/branding and a genuine for-show effort, all the while they do not audit their code outside some for-show technologies (Siri AI in the cloud).

So the point I am making is that it's all observational bias. You want actual objective security, use GrapheneOS.

And I'm saying this as an iPhone user.