That's right.

My parents, being much over 80 years old, have been using for many years Linux, more precisely Gentoo Linux, but they have no idea what "Linux" is.

Obviously, I have installed all software on their computers and I have kept it up to date.

However, after that, they have just used the computers for reading and editing documents or e-mail messages, for browsing the Internet, for watching movies or listening music, much the same as they would have done with any other operating system. When they had a more unusual need, I had to search and install an appropriate program and teach them how to use it.

They had the advantage of having a "consultant" to solve any problem, but none of the problems that they have encountered were problems that they would not also encounter on Windows. Actually on Linux when you have a problem, you can be pretty certain that someone competent can find a solution, in the worst case by reading the source code, when other better documentation does not exist. On Windows, I have encountered far worse problems than on Linux, when whole IT support departments scratched their heads and could not understand what is happening, for weeks, and sometimes forever.

By far the main advantage of Windows over Linux in ease of use is that it comes preinstalled on most computers. I have installed Windows professionally and it frequently has been far more difficult than installing Linux on the same hardware, but normal people are shielded from such experiences.

Most modern Linux distributions have one great advantage in ease of use over Windows: the software package manager. Whenever you need some application, you just search an appropriate package and you install it quickly and freely. Such package managers for free software have existed many decades before app stores (e.g. FreeBSD already had one more than 30 years ago) and they remain better than any app store, by not requiring any invasive account for their use, or mandatory payments.

>> They had the advantage of having a "consultant" to solve any problem, but none of the problems that they have encountered were problems that they would not also encounter on Windows.

I drew a hard "no family tech support" line decades ago, and the difference then is that they can at least find a Windows tech-support consultant. What happens if an octogenarian phones Geek Squad and says they're running Variant <X> of Linux?