I'd just like to interject for a moment. What you're refering to as vegan, is in fact, GNU/vegan, or as I've recently taken to calling it, GNU plus vegan.
Mine is a Mercedes, but I have observed this on most cars around here that are younger than ~5 years. Just today when biking to work, almost any newer Mercedes, BMW, VW or Skoda didn't have a model badge on the back. KIA and Hyundai were like 50/50.
The exception for BMW seems to be their electric vehicles, which were all badged with their model.
Also something I have noticed is that "performance badges" (AMG, STI, M, GTI etc.) don't seem to be affected by this - they often remain on the car.
My car doesn't have the model or engine size written on the back either, this is not exclusive to Tesla (although, depending on the make it might be an option to remove it when buying a car).
The manufacturer badge is usually enough, in my opinion. If you can't identify the model on the spot, as long as you can identify the brand and want to learn about the specific model you saw, you'll hit their website or dealership and identify it there. And with a brand like Tesla, that only has 5 fairly distinct models, it should be fairly easy to retroactively point out the model you saw - compared to a brand like BMW for example.
When I got my steam deck in 2022, I prepared an SD specifically for booting windows, because I figured I might need to boot it at some point for playing a game. 1 year later, I have not once had to boot windows to play a game. Incidentally, it often was easier to get older games working on proton in Linux than it was on a modern windows system.
I am not personally playing many multiplayer games, though, but I can see how being locked out of playing a current multiplayer game with your friends would be an issue. We can only hope that kernel level anti cheat is going the way of the dodo. But from what i understand, that would in a lot of cases mean for Tim Sweeney to get off his high horse, because of EOS, no?
I know you are kidding, but after the failed Steam Machines, the Steam deck has made people realize that gaming on Linux is mostly viable. Microsoft has pissed me off enough with windows 11, that I have decided to switch to Linux as my main OS on desktop as well.
Now, I am not going to count games that I knew were bad beforehand but still deliberately played to see how bad they were, I am going to assume the spirit of the question implies starting a game and the realization of how bad it is slowly kicking in.
One game that came to my mind was "Conspiracy: Weapons of Mass Destruction" on the OG Xbox, but there's probably worse games I played but have forgotten about.
Arch really is a hands-on distro. Installing it can feel like an accomplishment and a learning experience, but particularly when you have other people using the system, you might be better off with a less hands-on distro like manjaro (which is based on arch) or mint (based on ubuntu).
Mind you, even when using manjaro, you are legally not allowed to say "I use Arch, btw".
Personally, I am going to stick with KDE - my main PC has 256GiB of memory (It's a 2016 CAD workstation that I stuck a GTX 1080 in), so I really don't care that much about memory. But even on my lower end bay-trail lenovo tablet, KDE doesn't seem much worse than XFCE and by sticking with KDE, I don't have to "learn" both Desktop environments. KDE came with it's own drop-down terminal called Yakuake, btw. But I want to use the terminal as little as necessary.
At first I installed Arch on my main rig, but I then decided to switch to manjaro because I am worried that Arch might be a bit more "volatile" when it comes to updates than a more "stable" distro like manjaro.
My first experience with Linux was 15 years ago, when I switched to ubuntu Linux as my Laptop OS for 2 years, and within the first week of installing it, I saw the words "uninstalling gnome-desktop" appear during a distro-upgrade, and being a linux noob, reinstalling my system afterwards seemed to be the quicker sollution to the system rebooting to a shell only. I'd prefer that not happening again.
If you have access to a 3d printer (owning one, having a friend that owns one, or a makerspace near you), this is a really handy print:
https://www.printables.com/de/model/461009-steam-deck-usb-c-port-cable-strain-relief-v2