Three distros usually get recommended as fairly hassle-free. Ubuntu (personally haven't used since 2012 or so, don't like that they started advertising stuff), Linux Mint (haven't used in years either, but through no fault of Mint - I changed to something less hassle-free, Gentoo) and Pop!_OS. The latter uses customized Unity, but is working on its' own desktop environment. I have a feeling that when they're finished with it, it will be very user friendly (maybe not the FIRST release, but certainly the later ones).

Mint and Pop!_OS are both based on Ubuntu, so you'll have the vast repository of knowledge that is AskUbuntu to help you with most things.

So get one of those 3 distros and you'll be good! They come in different flavours (desktop environments), I believe GNOME is the most polished one, KDE (on

Also there's two new methods to install software - flatpaks and snaps. Flatpaks are considered the better standard and are supported by Linux Mint and Pop!_OS out of the box and Ubuntu... tries to force you to use snaps. Flatpak is decentralized and anyone can host a store (but mostly you just need Flathub, which is configured by default on most distros I believe). Snap is centralized and its' backend is closed-source, so you're dependent on Canonical.

Both of these install your software in a sort of sandbox that manages the dependencies - this means there should be no library version conflicts, so it doesn't matter what the system version of library X is, the application can use whatever version it needs. Should be a way to reduce compatibility issues on your Linux system, I believe - I haven't tried them yet, mostly because I minimized my kernel to the point where flatpak was complaining about missing some filesystem driver, and I didn't care too much about getting it to work. Will do it soon though.

As for gaming - Pop!_OS has an image available that comes with nVidia drivers straight out of the box, but the other ones I suggested, will also allow you to install them easily. Steam can be installed via apt (may require configuring a secondary repository) or flatpak (Flathub has it!). Once you have Steam installed, playing Windows games is as easy as checking compatibility on Protondb and seeing if there are any tips on whether you should use a non-default Proton version or add command-line options. But most games without draconian kernel-level anticheats work nowadays. New AAA games that don't work on default Proton get support fairly quickly on the GloriousEggroll fork of Proton, but that has to be installed manually (I guess nowadays there's an utility that can handle it too). However, oftentimes, a brand new game will work right away on existing Proton versions too. And sometimes there are regressions, so you may also want to try older Proton versions for some games. But that's as simple as changing a setup option in the Steam GUI. No terminal-fu required.

Overall, it's actually fairly pleasant compared to what it was 10 years ago, when you had to configure wine and pray. Proton handles all that for you. If you're a patient person and can wait a few weeks or months after a game comes out, it's very good, otherwise it can be a bit hit and miss.

You CAN also play non-steam games using Proton via Steam. I played through the entirety of AC Valhalla that way, by adding Ubisoft launcher as a non-steam App. Completely unsupported so it doesn't have a special config like it does for officially supported games, but it worked, just had to change the version to something old