Which Distro indeed?
You've pointed out the real problem with Linux.
There are so many different distros, some very different than others, they very often run very differently and will support different things.
So if one wants to make the switch there is no easy choice to make, unlike switching from Mac to Windows or vice versa.
In a previous life I worked in a plat that refurbished computers. Our big blue customer wanted us to come up with a way to package some of these machines with Linux so they wouldn't have to buy Windows licenses for them.
The customer gave no other guidance, so I got to work. I picked Red Hat because it was popular, was (relatively) easy to use, and the price was right, free. Our software boffins created an image we could load on the machines that had the OS, plus Open Office and a few games. I also wrote a booklet titled "What is this Linux thing anyway", that would give the user what they needed to get started.
We presented it as a nice, neat package, ready for the go ahead and we could start shipping.
The big blue sales guy liked what we did, but then said we really needed to use a distro made by a company the big blue company owned, that wasn't compatible with much of anything AND there was a charge for it.
And... that was the end of that project.