Unfortunately and that’s precisely what puts Microsoft in a position to make such aggressive moves.
For those of us in the market for a new or used system there’s always OS X which, as I understand it, is actually quite good for artists, although not particularly budget friendly. Most major software distributions support Mac and its user friendliness is on par with Windows and perhaps surpasses Windows in the eyes of many of its users.
OS X is Unix based and developed by Apple who ensures that OS X will only ship on systems of very specific hardware specifications. OS X is generally less buggy than other operating systems because it doesn’t need to be as versatile in terms of the hardware that it runs on which frees the developers to focus more on fit and finish as opposed to compatibility.
The free Linux distributions run on the widest variety of hardware compared to any other operating system which is probably why these distributions might feel less user friendly than others. The developers have to spend a lot of time developing and updating software and drivers for virtually every piece of hardware out there from Raspberry Pi to physics focused super computers.
Linux distributions often tend to put enhanced focus on the user’s privacy. The KDE Fedora spin, for instance, ships with encryption software that integrates with the default e-mail application, KMail, and file browser, Dolphin, which give you the option to encrypt emails before you send them or any file or collection of files on your computer. Of course when encrypting e-mails the recipients must also have the decryption key in order to access the contents.
There’s also the most recent entry into the desktop OS market, Google’s Chrome OS which ships on the rather budget friendly Chromebooks. Honestly I don’t know much about it other than it’s actually a breed of Linux. Unlike OS X, though, Chrome OS was designed specifically to work mainly with Google’s on-line services so instead of using software such as MS Office or Libre-Office to create and edit documents you would use the Google Chrome browser to log in to your Google account and use their on-line in-browser document editor.
P.S. Personally I’m currently running the Fedora 22 KDE spin, Fedora calls their alternative desktop releases “spins,” the main Fedora image uses Gnome rather than KDE. As much as I like the Plasma 5 desktop for KDE I mainly use the LXQt desktop environment which is really easy on the hardware, only uses about 300-400 MB of RAM which is useful for my lower spec system.
Honestly KDE Plasma 5, Cinnamon and Mate probably offer desktop environments that’d be at least somewhat more familiar to Windows users. Xfce and LXDE/LXQt have that similar menu system too, but being lightweight they often take a little bit more fiddling to get working the way you like.
Linux Mint ships in both Cinnamon and Mate flavors while Fedora has spins for Gnome 3, Cinnamon, Mate, LXDE, KDE/Plasma 5, Xfce and probably others. Ubuntu has a variety too in addition to also, primarily, shipping with the Unity desktop environment which seems to be a love it or hate it type deal. Ubuntu with different desktops has a different name, for instance Ubuntu with Unity is Ubuntu, but the Ubuntu image that ships with KDE is called Kubuntu.
P.P.S Landing on a Linux install can be confusing with all the different options. You have distributions such as Ubuntu, Fedora, Mint, OpenSUSE, etcetera which generally ship with different combinations of default software such as email clients, web browsers and text editors.
Then you have desktop frameworks and environments. There are two major Linux desktop frameworks, Gnome and KDE. Gnome is centered around the GTK libraries while KDE uses Qt. Gnome, best I can tell, has a wider variety of desktop environments such as Gnome3, LXDE, Unity, Xfce, Cinnamon and Mate while KDE has Plasma and LXQt (the KDE port of LXDE.) Linux software utilizing a graphical user interface is usually written for either KDE(Qt) or Gnome(GTK.)
You can usually run software written for one in both, but you have to install the required libraries. So if you’re running KDE you need to install the Gnome libraries in order to run an application written in GTK and vise versa.
Plasma 5 has a lot of nifty effects and is extremely customizable, however this customizability makes it more complicated to customize because there are so many options. Gnome is generally less complicated, environments based on Gnome3 such as Gnome3, Unity and Cinnamon are some of the least complicated. Mate is actually a fork of Gnome2 because a lot of Linux users weren’t happy with the simplifications made for Gnome3.
DISCLAIMER: I am by no means an expert on Linux, this is just some of what I’ve been able to ascertain while shopping around for a different OS myself. In the future I’d like to graduate to Arch Linux which is probably the most versatile distribution, but itself starts out without a graphical desktop environment and only a command line interface from which to build upon.
Aside from that, as far as web browsers are concerned, I like to use Firefox with the uBlock Origin and NoScript plugins. uBlock Origin blocks ads, which speeds things up considerably considering my slow connection, and NoScript is pretty useful for security purposes and utilizes a white list style method of blocking JavaScript on websites. NoScript can be found at https://noscript.net
I use uBlock Origin in my Android Firefox too, but unfortunately NoScript is not yet compatible. I use the Nightly builds of Firefox for Android because the stable Firefox Android appears to only be available on Google Play which I do not use. I read Google’s terms of service and didn’t care for it.
On a more personal note, along the lines of what Ace said in regards to having limited options other than Windows. I’ve found that when you do not agree to the majority of terms of service agreements around you there are a lot of sacrifices that need to be made.