#1 is just not being the default for 99% of devices. If someone gets a new computer, why would they go through the effort of installing a new os when the one it comes with works fine? Hell, I bet at least 50% of people in the market for a pc don’t even know what an OS is.

Agreed. Android and chrome os are used happily by 10s of millions without any idea it’s a Linux distro

I bet if small, cheap netbooks came out running mint or fedora or something people wouldn’t even or know or care that it was Linux.

In middle school I had a USB drive with Linux Mint installed on it which I was using on school PCs. We only used those PCs for internet browsing and office. Not a single soul noticed it wasn’t Windows. Teacher only noticed 2 differences, “You have different version of Office installed here.” and also gave me a note for “Changing wallpaper” which was strictly prohibited for some reason.