I fell of Ubuntu when they moved the X, + and - buttons over to the wrong (left hand) side of the windows.
One of the best things about Linux is also one of its downfalls: choices. If you don't like something about Linux, just change it. Select (or install) a different one, no matter what "it" is that bothers you, or you don't like the options, or you don't like the UI, or whatever. Those choices are also its downfall because new users don't know which they need, or why they would want one vs. another.
In your specific example, those buttons are controlled by an app called the Window Manager. It lets you easily change which ones appear, their location, and their color/graphic theme.