Linux

Your issue seems less the command line and that things aren't "working", or the tools you want aren't pre-packaged.

Using Arch Linux was not the best idea if you want something that "just works", as it works on a philosophy where you install the minimum amount required and then add things, such as drivers or packages, as you need them. In other words, it's a distribution where you know what you need for your system. It is also a command-line centric distribution, so it's strange that "GUI" is your bug bear when you picked one that deliberately forces command line.

Regarding overclocking and GPU configuration, you just get CoreCtrl, which even has a GUI.

Now don't get me wrong, I absolutely agree that everything should have a user interface as much as possible, but the whole "Linux means you have to use command line all the time!!" is simply just not true anymore, and I feel this issue comes from people recalling memories from 10 years ago or using distributions where command line is necessary, rather than something like Ubuntu or Linux Mint where it mostly isn't.

Entitlement: the post!

The disregard for simplicity and/or outright hostility towards ease of use and centralizing settings I see in the comments here is the primary reason Linux will never replace that other OS as the home computer OS. This culture of elitism, and yes it is elitism, is harmful to that cause. I see this attitude almost every time someone expresses frustration towards Linux for an issue that other OSs have overcome (or significantly lessened) literally decades ago.

There is, arguably, a sense of entitlement for wanting free software developers to ‘do the thing’, but that’s not a Linux problem. Free software exists on all platforms, and those developers still manage to follow the OS’s design philosophy.

The standard user should never, ever, ever have to use a CLI for anything ever, nor should they need to have a Linux Guy on speed dial to be able to solve a basic general issue. You might argue that an issue on those other OSs might need someone to open a CLI or dig into a settings file to fix, but those times are so few and far between that the average user may never have to do it in their lifetime. Meanwhile it seems like every solution to a Linux issue begins first thing with opening terminal.

User friendly flavors of Linux have made great strides towards making things much closer to those other OS design philosophies, and that’s great, but they’re not quite there yet. I’m also not saying every flavor of Linux needs to follow this pattern, as not every problem calls for a hammer. The problem is that Linux is still very much a Wild West OS where anything goes, hidden behind a roughly painted GUI facade.