And yes, he is running Linux on it ;)

It’s literally right there.

Edit: The article needs to be dug out of the waybackmachine: https://web.archive.org/web/20050309174306/http://www.zdnet.com.au/news/0,39023165,39183867,00.htm

Torvald’s response came quickly and succinctly. “My main machine these days is a dual 2GHz G5 (aka PowerPC 970) - it’s physically a regular Apple Mac, although it obviously only runs Linux, so I don’t think you can call it a Mac any more ;)” he said.

His most recently stated preference is definitely Fedora: Linus Torvalds on Linus Tech Tips

He specifically likes it (over say Ubuntu) because it’s easy for him to build/replace the kernel whilst at the same time, it’s a “just installs - just works” distro with no tweaking required.

Edit: I see no evidence that Linus has EVER used MacOS as his daily driver, despite using Mac hardware several times.
This is all way off topic, but “Even Linus I INVENTED LINUX Torvalds doesn’t even use it” is wrong.