I think the biggest obstacle to widespread adoption of Linux is not using Linux itself, it's installing it on a computer. 99% of people don't know how to format a USB device, or how to enter the BIOS.
If it isn't a problem it's not worth fixing. A lot of people don't even know where they are saving their stuff to, so if it's in the cloud or on their device doesn't really matter to them.
Third-party doctrine: https://en.wikipedia.org/wiki/Third-party_doctrine
Between those and the people that can navigate everything on Linux, there'll be mildly technical people. Those may explore things that are out of the ordinary but will be unable or unwilling to fix issues that could arise from that
Until their computer dies, and then they get upset at Microsoft for not having some automatic backup process like they have on the other platforms their friends use.