I always hear that a normal computer user would never install an OS and that is the main reason Linux has not a higher market share. But I guess what we mean by that is that a user would never create a live usb, access the boot options and boot from there to install the new OS.

Is there a hard technical limitation when it comes to create a tool that installs a linux distro from a "normal" windows exe file, provided that the user first disables secure boot and fast boot (which are things a tool with admin privileges should also be able do on first run)?

Does such a tool already exist?

I feel like there's something I'm missing, forgive my ignorance