Since Linux is not an operating system, but the kernel, I think the guy means:

• Gentoo
• Arch Linux

But hey!

• I don’t like Debian, but it’s good, quite a lot of people like it
• Fedora is good either. I like it. People don’t like corporate influence, but hey, it’s good, isn’t it?

I’ve heard good things of Bazzite (a repacked Fedora, isn’t it?). Also, Pop_OS! looks promising too, especially with their recent Cosmic Desktop. Personally, I despise Mint (especially the Ubuntu version, lol, shit based on shit, sorry everyone) but many people like it, so it’s not as shitty as I believe it is. Em, Ubuntu … anyone uses it? I’ve seen folks using it as a server OS. I have no idea, perhaps that’s not incompetence, but there are use cases.

So yeah, still more than three. I’ve heard BSDs are quite good, but maybe not for everyone, especially as desktops. Yet, I’ve heard good things about them.

Alpine. Even on a desktop, people use it. And if you like SBCs, I think DietPi is a great project, Armbian is a great effort too.

So… I don’t know man. We have more than three, our issue is with the opposite, we have too many. Someone uses Slackware even. Others Linux from scratch. There are Nix people. I should have missed someone. But as I’ve been saying, we have too many already.