MacOS is built on a Unix kernel. NetBSD is the OS under the hood. I hate the MacOS interface but it’s better than Windows 10. Mac makes great hardware though. But you pay for it. Too much imho. But if you got the $, and it makes you happy, roll with it. Now the Mac IOS is pretty good and so are the mobile devices like the iPad and iPhone. But once again. It’s gonna cost you. I’m personally waiting for the secure line of linux based phones. Copperhead is a good example. Not quite ready for consumption yet imho.
I'm also getting ready to replace my Samsung Galaxy S9 and have an offer from Verizon to get a "free" iPhone 12 or Samsung Galaxy S21.
I've been happy with my Samsung Galaxy S9 from a performance and reliability perspective but the number of scam apps on the Google Play Store, the somewhat "iffy" information security and the cross-site tracking from Fakebook that still happens on Android even if one isn't a Fakebook user (I am not) really bugs the sh*t out of me.
I've been researching the iPhone's security and how they're blocking Fakebook tracking and that right there may be enough to get me to swith to an iPhone.
99% of my smartphone usage is text messaging, streaming audio at home or in the car, and navigation in the car. Occasionally look up something on duckduckgo or do some comparison price shopping when I'm at a store but those use cases are pretty limited.
The only thing I don't like about the iPhone is the lack of ability to customize it to look and work the way I want it to. I can do that with my Android phone, I've never understood why that cannot be done on the iPhone.