I am absolutely sure that a change on the desktop market is coming and that open source operating systems will gain a nice percentage of the market share, if not the majority thereof.

But this change will be a lot slower than we would like it to be. It'll come, but it'll take some time.

We saw similar changes in the browser and the phone markets recently, it went faster there because it's an easier change for non-technical users.

It's rather great that the floodgate is now open and that open source is slowly overtaking their proprietary software and operating system counterparts. It's also a fact though that Microsoft and surely others are trying to close them again, one approach is the "secure boot" nonsense for example. One can only hope (and of course, work on open source whenever possible) that they won't succeed in that.