Here's the problem with sweeping statements on the Internet like the one you just did - you never know who you're talking to.
You have no clue how hilarious your comment reads from the perspective of someone who's worked in IT for the past 20 years. :D
Here's the difference between Linux and Windows TODAY (that's a CRITICAL point) - the average user gets the OS installed, fires it up and just uses it. If there's a problem, a reboot will fix it 99% of the time. For that 1% there's a bajillion different forums where they'll find help.
Now, Linux? You install it, fire it up, and it runs without issues. Or it doesn't! You use an app, and it works - or it doesn't! You start searching for solutions online and find that the issue you've had has been resolved but on a different distro, things look different on yours and you have no clue how to proceed.
Windows is not a perfect OS, but it's as good as it gets (next to MacOS) in terms of "I'm John, this is my first computer, I just learned how to log in and now I want to have some fun". Linux is FAR from that, still.
It's actually the opposite. Worked in IT for 20 years, had to troubleshoot every conceivable issue with Windows.
Here's the difference: 90% of the time, once you've installed the OS, it's smooth sailing*. If it's not, reboot, and it will be fine. For the fringe cases, just search online to find help.
This last bit is what kills Linux as "user-friendly OS" - you have one distro, but solutions you find are for five different distros and each one looks and feels slightly differently, so things are in different places.
EDIT:
* I should've added: TODAY. It used to be VERY different, but these days? It's mostly "fire and forget".