OK, now I get it.
Of course I heard about it. The “state sponsored Western propaganda” also very specifically mentioned that phrenology studies were shut down only in the 70s in Sweden, in case that would be your further attempt at a “gotcha”.
Why would you think that it’s some sort of secret?








Yes, that was exactly the point I was making.
The “primary” distros would be Arch, Debian, Fedora, and NixOS.
Anything that grew out of those (with NixOS being to young for that yet, I think), is going to run basically identically, and since they all grow from the same kernel, at a fundamental level they also behave similarly.
Like, if you switch from macOS to Windows, you see fundamental differences in how things operate. If you switch from Fedora to Arch, you need to learn the new package manager syntax, but the rest is still Linux.
I’m simplifying, but I think you know what I mean.