Johnathanamz: I am sorry I cannot learn a different Operation System (OS) Linux is to hard. Some Linux users said there are easy versions of Linux to use, but I cannot understand terminal most of the time.
Normal everyday usage within the GUI with Linux doesn't really differ from using Windows. Hey there's the Firefox or Chromium web browser icon, I guess one can get online to web pages by double-clicking it? And there's the start menu behind which you can find different applications and system tools.
Even my technically-challenged wife can easily use Linux for her daily tasks, admittedly I've set up an account for her (but then so I have set up Windows user accounts e.g. for my boys, so that's not different from Windows either really...).
The more advanced stuff like how to configure this and that, that is what Google is for. You don't have to really understand what you are doing, just follow the instructions, after awhile you will probably get it too after doing the same task several times according to the instructions.
The reason why those Linux instructions are for terminal is because then it is easier to give precise instructions, rather than guiding what to click on the graphical user interface, especially as there are lots of options for those in various Linux distributions.
My godfather became an avid Linux user (mostly moving from Windows to Linux) when he was well over 50 years old, and he is not really an IT nerd either (psychoanalyst by profession, anything but an autistic IT guy).
Now, if you just unwilling to learn a different kind of OS... that is another barrier of course. I similarly have no desire to learn e.g. MacOS or iOS as I just see no point to it, no reason whatsoever for me to move to the Apple world either with my phones or my computers, and I even resist it a bit. Well, the new ARM-based Mac laptops intrigued me somewhat, but I dislike their "glue everything together, nothing can be replaced or added by yourself, even the SSD"-design, yuck!
EDIT: But if we are specifically talking about PC gaming, that certainly still is Linux' achilles heel as it still means mainly trying to get Windows games to run on Linux, which is extra hoops for normal user, usually more tinkering involved than getting the same game run on Windows (albeit sometimes it is surprisingly easy too and not much extra effort is needed at all.
IMHO that is the right way for Linux gaming trying to become more popular: make it easier and easier to run Windows games on Linux. If that succeeds, then more and more developers will start supporting Linux also officially, even making native Linux games. Expecting them to make them now for a 1% user base is even less believable than them releasing their games on GOG!