Linux

I recently made the switch back to Linux, to Pop! OS, and I've never had such a smooth experience before. It's currently using GNOME as its desktop environment, which I find a bit shit in general, but they've modified it enough so that it's user friendly and intuitive. It has an "app store" as well that you can use to check for and run updates, search software etc. If you have a big screen, the window tiling function is awesome. Highly recommend you have a look at it!

I'd just recommend against NVIDIA GPUs if you don't want to tinker, I'm sure it's not as bad as it was back when I had NVIDIA cards, but faffing around trying to get NVIDIA drivers to play nice was the bane of my existence (and where I was forced to learn the most about Linux).

Oh and the screen tearing was a nuisance too that went away as soon as I got an AMD card.

Looks like you got lots of great advice on the OS. Good luck, and enjoy whatever you end up doing!

Imo you should get a System76 computer, it comes with a gaming focused Distro and its the most well respected Linux brand (in the US, for EU I would reccomend Tuxedo). Their mini PCs cost $799 and for a decent full sized PC (with a GPU) prepare to pay over $1.5k.

Seems like you've got a lot of distro recommendations haha which is good - go for one of those and you should be ok (I'm on mint for the record). My suggestion if you have a bit if extra money and less time is to buy a prebuilt system with linux already installed, tuxedo and system76 are two big names but I can't comment on what to go with there.

However the advantage with buying an integrated system like that is that the hardware is all guaranteed and you can ring them for support if needed.

My other suggestion is to BACKUP your files!

I run Linux Mint for years and years, I think you will be happy with it.

Linux mint is a common recommendation but I think a bad one (for beginners anyway), I highly recommend bazzite with kde, I have 15 years of linux experience and am willing to do infinite troubleshooting if you add me on matrix (which is on my profile) I've onboarded many people and this is my experience with beginners

in short, linux mint is bad vs bazzite with kde for 3 reasons

kde is much more well supported and developed than cinnamon, it's not even close especially if you care about security

immutable distros are much more forgiving for new people, immutable means that the core OS can't be modified.

and finally bazzite has more up to date software, linux mint is a "stable" distro, stable in the linux context means unchanging, not unbuggy

if you don't know what any of that means, go bazzite over mint, you'll have an easier time.

Generally, Linuxmint is the go to distro if you want something that holds your hand, but due to your limited needs outside of gaming and already having a Steam deck you should take a look at Bazzite, which is basically the desktop mode of the Steam deck for PCs.

As for hardware, one thing that can be annoying is NVIDIA (drivers), but that shouldn’t be a major problem with these distros as mint has a built in manager that does everything for you and with Bazzite you just need to specify your GPU when downloading and don’t have to do anything.

My recommendation is download the distros you want to try, get Rufus put them on a USB and then play around with them in demo mode, make sure everything works (graphic card, printers) and if you like the distro then start the installer. If you don’t like it you can just unplug the USB and reboot without anything persisting.

1. The various versions or flavors of Linux are called "distributions" or "distros." There are several that are intended to be ready to go out of the box. Linux Mint is a pretty good one for general desktop use though they're kinda behind the times with Wayland and such. I see a lot of folks recommend Bazzite but I personally know nothing about it. I'm using Fedora KDE, Fedora is meh, KDE is pretty good.

2. If you're building a gaming desktop specifically for Linux, I recommend going with AMD GPU and an Intel wi-fi adapter. There are some Wi-Fi adapters that don't play nice with Linux but Intel's drivers are pretty good. AMD releases their drivers right into the kernel, there's nothing you need to do at all to get AMD GPUs working on Linux, Nvidia is a bit more of a pain. Also, with desktop peripherals, avoid anything that needs one of those configuration utilities, they tend not to be available for Linux. I use a Coolermaster MasterKeys Pro M keyboard which all configuration happens on the board, they don't offer any software for it. Highly recommended.

Oh also: Asrock's RGB lighting weird and non-standard. If you want to use open source stuff to control your RGB lighting and that's important to you, I recommend against Asrock. Just so happens my build's RGB is controlled via a controller built into my case.

Try Bazzite:

https://bazzite.gg/

It will give you an experience that's familiar compared to the Steam Deck, and everything will "just work" out of the box.

It already has Steam installed and is a great desktop for general use.

is there a Linux… idk what to call it, type? OS? Thing??? that runs out of the box without me having to install additional software manually or at least automatic setup wizards

The word you are looking for is called a distribution, or distro for short.

I'm surprised no one else has mentioned Bazzite, which should be exactly what you're looking for.

is there any specific hardware that works easier with Linux

An AMD GPU for sure. Nvidia drivers have come a long way, but they don't generally behave as well out of the box like AMD.