I came across a bunch of those recently, which is how I came up with the idea for this, as a parody :)
Internet horror is disappointingly un-creative. I have no idea why the weakest works (sonic.exe, anti-piracy, kill screens) always end up becoming huge trends, or why so few people try to put a significant twist on said trends.
Tons of companies are shipping Linux without giving users access to the source code, it's just that only one has the term "Tivoization" named after it.
Where'd you get the OneShot Firefox icon?
I'll probably use Codeberg or another Forgejo server for my next programming project, if/when I have one that is far enough along to publish (motivating myself to get that far is a tall task). Until then, everything I'd consider contributing to is either on GitHub, or is self-hosting some other software, so I don't have a reason to create an account yet.
If you haven't set up this laptop yet, then I'd suggest installing a server-oriented distro like Debian, AlmaLinux, or Ubuntu Server. Those have minimal install options that come without a desktop environment installed, as most servers do not need one. If you'd like to make the install harder for yourself, this might be a good excuse to give Arch Linux or Gentoo a try, as those have the option of a fully manual install. If you'd like, you can install a desktop environment afterwards using the package manager.
If you already have a Linux with a graphical desktop installed, you can configure the system not to automatically start it with sudo systemctl set-default multi-user.target. (Do not do this on your main device!) You can re-enable it with sudo systemctl set-default graphical.target.
Regardless, you can then start a graphical session using startx, or whatever command is more appropriate for your desktop environment (gnome-session to start GNOME on Wayland, startplasma-wayland to start KDE Plasma), or by sudo systemctl starting your login screen manager (sddm, gdm, lightdm, etc).
No modern AAA games have been released this way, but there is at least one game made specifically for libretro (Dinothawr) and a few other games that have been converted into "contentless" libretro cores (Cave Story, Mr. Boom, Rick Dangerous).
The games (or their engines/emulators) would have to be modified to use the libretro API for things like input, rendering, and sound. Though it doesn't look terribly hard to program for, it does tie the game to RetroArch (or another libretro frontend) and possibly limit what the program can do.
I thought I'd also bring up Lutris, which is not only a libretro frontend but also a frontend for numerous other game platforms. It may not have the game console-like UI of RetroArch, but I think if you must have all games under one launcher, it's the best you could hope for.
I'm not averse to trying new foods, but I have strong aversions to certain foods that I have tried. If I have a bad experience with one food, I will not be willing to try it again for a very long time, possibly ever. And if I have a good experience with one food, and it is easily available to me, it will remain in regular rotation for a very long time.
I'm currently on the RHCSA path myself, and I can tell you that the courses are not worth the thousands that Red Hat charges. There are plenty of unofficial video courses on YouTube and Udemy and study guides and practice tests on GitHub that are free or cheap, and other resources for every individual study topic, which will be good enough.
However, though I can't speak from experience, it seems like the cert itself will look good enough on a resume to justify the investment of $500 and a month of studying.
Assuming you mean the Beelink S12 (which is the first thing that comes up in a search for "n100 mini pc"), that's quite similar to my own computer specs, which can run just about any distro, with enough resources to spare for a VM or two. I don't think it's necessary to go really lightweight or pick something special. If there's a distro you're already familiar with and know you can do all of those things on, install that.
If you like Garuda, you could always try a different Arch spin which is lighter out of the box, like CachyOS or EndeavourOS.
I've switched to FreeTube for now, it still works using the Invidious API. This is happening because YouTube is testing forced login to watch videos or use the API. There is a workaround it seems, but we'll have to wait for all the major clients to roll it out.
I've never used these, but I've come across them while scrolling through F-Droid and they seem to fit this use case:
Kotatsu
Kinoko