It isn't about how easy/difficult it is to hack them. Any password manager I use needs to be un-hackable in any realistic sense. It's about trusting the company. And before I get flack about "nothing is un-hackable" blah blah, see "in any realistic sense".

Exactly. When I worked at 1Password everyone in the company knew this, and were trying to vastly improve the user experience. I've been gone for about 18 months now and I don't see many changes, which is unfortunate, but I know it's something they are passionate about. I hope they can figure it out, I think UX and easy of use are difficult things to get right for password managers.

But only when using an Apple product (for the iCloud solution) or Android device or Chrome browser (for Google's), right?

My parents use whatever browser their company has installed on their computers, which I think is Chrome for one person and Edge for the other. Their home laptop is a Surface Laptop device with Edge on it.

It'd work for their phones, and I honestly don't see them switching to Android anytime soon, but it's still not available all the time, and I haven't been able to get them to do anything but autofill of the passwords I created for them. Even as is, telling them to go to a dedicated app to copy a password to use on their laptops is a step too much. Adding more complexity isn't going to help.