Top of this list used to be particular versions of Ubuntu
Summary: GNU/Linux "market share" in Steam grew by a quarter this past year, boosted by SteamOS perhaps, but watch the trends in distributions; even the Ubuntu-based distros aren't near the top (and SteamOS moved from Debian to Arch, so expect Ubuntu to stagnate further)
Many sites will go offline and many social control networks will shut down once they realise or even openly admit they spend money and time gardening a bunch of bots and slop
it would rightly seem like the era of centralised "social" sites (they're not social, they're about controlling the users) is ending, not overnight but gradually
The next few years will be interesting because if Microsoft lays off tens of thousands of workers each year, there won't be much left except mountains of debt and dying brands