Linux is not a single alternative. It's hundreds if you start digging, and even if you whittle it down to noob-friendly not-completely-idiotic choices, something the proverbial noob are probably incapable of or unwilling to do, there are still like, 5+ decent options to pick from. Asking the proveribal noob to pick from Mint, Ubuntu, Pop, Bazzite, Suse, Debian, Fedora, or any other option is a big ask. There's a lot to take in, especially for someone who just want their computer to work and not dick about with silly bullshit.

It's good that there are options, but most people aren't interested in having a dozen decent choices. They want one, solid, good choice, or at least obvious and clear reasons to pick the different options, and they certainly don't have time to try out everything between heaven and earth, especially for something that needs to Just™ Work™.