Gnome is still by some distance the most popular user interface on Linux, and is also very strongly opinionated and appears to lack customization options [1]. The project's "our way or the highway" approach is frequently vocally criticized and compared to Apple's approach, but as a whole seems to be appreciated well enough. I wouldn't say the Linux community as a whole are assholes about this.

The fact that many online Linux users take offense to lack of customization is not really something to worry about in my opinion. I used to customize Linux installs endlessly, but only truly found zen when I stopped worrying committed to stick to Fedora's default install.

[1]: Besides the point but Gnome is arguably far and away the most customizable desktop shell on Linux, as its extension "mechanism" consists of literally overwriting the JS code that powers its shell interface. For better and worse.

To be fair, customizability and freedom aren't Apple's selling points.