I've seen people like that and when I recommend a hardware wallet at least, they're surprised about it's existence. Ignorance is a major factor that keeps people vulnerable, the scammer always has his way easily with them.
I feel like they belong to different group of people. I find it hard to believe someone who use an Apple device to not know a single thing about hardware wallet, or other alternatives in general. Especially when they store millions of dollars in there. That doesn't mean they'll always have a good awareness though. In my case I see people trusting exchange as a main or secondary "wallet" more of then than iPhone users not knowing what Trezor or Electrum is.
I don't quite agree with the logic. Using an Apple device doesn't necessarily equate to being techy or being well-informed about proper Bitcoin safekeeping. Apple devices are mainstream, user-friendly, and accessible to everybody. It's not something that only highly technical Bitcoin supporters can make use of. It's just a phone, a globally popular brand at that. So, it won't be surprising if an Apple user hasn't heard of Trezor.
What surprised me is that despite having hundreds of thousands of dollars in Bitcoin, they chose a hot wallet as their choice of storage. Worse, they were extremely negligent and lazy in handling it.