Unix is an operating system and there are a lot of other operating systems derived from it. Windows is one of the few operating systems that are not derived from Unix, although I suppose it would count if you setup WSL and riced it since it runs the Linux kernel.
Unix is a specific operating system, and there are a lot of operating systems based on it or derived from it (Linux, MacOS, BSD, and both Android and ChromeOS which are based on the linux kernel)
Here's a handy link to the Wikipedia page for unix. You may find the intro & history sections more useful than the stuff about what Unix is from a technical perspective, or how it works.
This may be sacrilege, but I don't mind seeing someone's Windows customizations here, though its not what the community is intended for
Basically, nowadays Unix (or more formal POSIX) is a standard for operating systems to follow. Most modern operating systems are either derived from Unix (modern MacOS and Solaris), inspired by it (Linux and open-source BSDs) or at least POSIX-compatible (Haiku). Windows is neither of this - being monopoly they basically don't need to follow a standard when they can force everyone to implement their solution.
Just show WSL running in the terminal and you're good 😉
I use Linux everywhere I can, but my main rig is Win10 Pro, as I play a few games that will not run on any other OS.
That being said, I use tabbed file explorer, a package manager (Scoop through terminal, and winget-ui for GUI), a top-down taskbar, and as much FOSS as I can use for my workflow. I lovingly call my setup "Winux", because any MS user who sees it thinks it's Linux.
wsl technically make windows a distribution of linux, therefore, windows is unixrelated, so your post is relevant.
your rice is pretty mid though get some blur in there and either make everything translucent or nothing translucent, also, black and grey don't mix, and those colored icons in the middle really swear with the outlined one on the right and how many different fonts is that, 4 ? still upvoted because the heart is there.
It means desktop environment and window manager respectively. Windows has only one (it being the default) and is not unix, so you should probably post this elsewhere.
You can rename your desktop shortcuts with invisible characters to have them only appear as icons. One character that works for this is holding alt and using the numpad to press 255, you cant have the same name for the icons, so just add different number of invisible characters to them.