The best operating system depends of what you are going to use it for.

Every time I hear that Windows, macOS, or Linux is the best operating system, I can't help to ask the best operating system for what? Each one has its strengthens and weaknesses, that make each the best solution for different set of use cases.

The best operating system for me is Linux, in particular Linux Mint. Linux Mint just works for me, but I'm sure that it isn't the best option for everyone. Some of the people I know are better served by Windows while for other macOS is the better option. At the end of the day, it comes down to what each person does with the computer they own and/or the apps they use to get things done.

For example, I LibreOffice does all what I need from an office productivity software, even at work. For others, Microsoft Office is a most have, so Linux wouldn't make sense for their use case. If a user used Final Cut Pro, then macOS is the only way to go, since it isn't available for Windows or Linux. Most of the most used CAD(computer-aide design) software used professionally only works on Windows.

As such, which is the best operating system depends on each user needs it for. Personally, I'd like more software to be available for Linux. Yet, I understand why sometime that isn't viable, or why developers don't want to make it available for other operating systems.

And while I know there are alternatives for almost all apps in other operating systems, making the jump to those alternatives isn't practical for money issues or you can't make customers or providers to make the jump with you. At the end of the day, it may just boil down to that making the jump is just to muck work to make it work on the long run.

While I prefer Linux Mint, and would love more people to use it as their main operating system, I do understand that it isn't practical for everyone to use it.