A “Hackintosh” is a standard PC that’s modified to run Apple’s proprietary macOS (or OS X) operating system. It was a popular pastime back when Apple was using Intel chips in its laptops and desktops, though it’s fallen off now that Apple is on self-built Arm hardware.
But someone is keeping the spirit of Hackintosh alive by running the latest macOS Sequoia build on a Steam Deck.
Why would you work really long and really hard to boot an operating system that’s very pointedly not designed for gaming...