You both did not understand what this thread is all about. We all know that people should be very careful about their online devices like phones, tablets and computers but this thread is even beyond that. This thread is about even people that are careful with their online devices still being vulnerable to a malware that is the fault of Apple and not the users.
I did understand what the thread is about, but I still believe that having a separate device that isn't always connected to the internet and is used for normal activities will be much safer than one that you use often and is always connected to the internet. The zero-click vulnerability that allows hackers to access devices will only work if the device is always connected to the internet because even if they find a backdoor to your device, it won't work if your device is not connected to the internet because someone sitting across the world can't get into your system if your device has no internet connection.
That's why I said, people should use separate devices to manage their financial apps and activities, so that they can keep their devices safe from such threats and vulnerabilities, because when you don't use a device for normal stuff like social media, gaming, or anything like that, you don't need it to stay online at all times, and that is going to greatly reduce the risks of it getting compromised.