my grandma uses it just fine...

It is though? Is the bar so low that simply having to read, comprehend and follow instructions is disqualifying?

Maybe you need to abandon desktop computing and go purchase an iPad

If you're using vague, borderline nonsensical phrases like "install files" when trying to find out how to do things that might go some way towards explaining it.

There are flavours of linux that allow you to just click and install compatible file types. You can easily use Ubuntu your whole life without touching the terminal. Using the terminal allows you to do certain things much faster and easier but that is a skill you need to train if you want to use it.

If you are however talking about trying to run an originally windows native game in linux, then that might turn out to be an advanced problem. So you need to be patient and likely try couple different solutions (starting with the most recent dated one and paying attention to version numbers etc). It might even turn out to be impossible. That is an inescapable consequence of using a non main stream OS, not a problem of the OS itself. But given how the gaming world is shifting to linux, that might change in future and windows users (if any) might start complaining about how hard it is to port games to windows.

@Linktank @OR3X Wow, you're rubbish.