Always amused...
As this thread no sooner began than the "Year of the L. Desktop" shtick started, let me offer my opinions.
Currently I work on a range of systems which inclde Mageia Linux 8 and 9, Win10, Win7 (on an old, second-hand mini-laptop), and several incarnations of Android on other devices. The Mageia installs usually wrote over partitions which used to have an incarnation of Win, and I have been using different shades of Mandrake, Mandriva and Mageia consistently here since 2005.
When it comes to the question of migration from W to some form of L, I suspect (based on my own experience) that it is those who, in the now-remote past, had to put up with regular re-installs of Win that would find the transition to L easier; they have experience which includes solving the very kinds of issues that arise during an installation.
However, although I have three different versions of W spread across a number of machines, I don't normally use it because Mageia has all the compatibility that I need; my only gripe is that I am far from sure whether I really need systemd and have been looking elsewhere the last couple of years... but seriously, a person can live without M$Office and the like and still be productive; it hardly takes any flexibility of mind.
So, if M$ actually went belly-up and disappeared some time, I wouldn't miss it because I already have all the functionality that I need - including slic3r for my recently-purchased 3D printer and multiple options for print publishing (the use of which goes as far back as 2008).
However, what amuses me is that when offering their opinions about exactly which version of L a Win refugee might plump for, it's usually either Ubuntu or Mint. I get the impression that they haven't really tried many different distros. Perhaps said refugees need to be pointed in the direction of Distrowatch to choose for themselves?