Xonotic was awesome. Warsow (Warfork now) was super fun back in the day. There were legit tournaments that went on with twitch sportscaster calling the play by play on 1v1 tourneys. Not sure how big the player scene is these days.
On Windows, nothing beats foobar for playback, tagging, and conversion support. I use Deadbeef which is like the Foobar of Linux. It has a similar user interface and a playlist format conversion tool as well. VLC also converted audio if I remember correctly?
Think about it though. When people say they want to "code AI" what they typically mean is they want to play with prompts and waste electricity on garbage models, not actually write any of the underlying models that power AI.
NixOS stores a snapshot of your OS and all the app configs in an OS config folder for you. Helpful for instant system recovery or deploying the setup to new hardware.
A friend loaned me a CD set of Mandrake which had an early version of KDE. I was floored away by something as simple as the level of customization you could do with the taskbar. And having this alien operating system running on an alien EXT3 partition format instead of FAT32 or NTFS that you didn't need to defragment. It seemed pretty fantastical.
I loved tweaking the desktop environment on Windows by replacing explorer.exe with LiteStep and Blackbox so likewise I did this on Linux. Over time I had fun discovering Gnome2, Fluxbox, XFCE, etc. you name it. Eventually I got a desktop I really liked and felt productive on and as Windows XP approached end of life I had no intention of using Vista so I transitioned to exclusively Linux at that point.
I did play with different distros and running servers at the time, hosted VMs back in the day you had to take whatever distro they offered. But for my desktop I basically went Mandrake, Arch (didn't know how to make everything work), Debian, Ubuntu, back to Arch.
I switched because Windows XP reached end of life and I had no interest in Vista. I was also pretty familiar with Gnome 2 and XFCE, both of which provided a very similar desktop experience to XP but way more customizable.
Providing a name is optional so for many users its just an email address.