Then you have the XP fanatics. who are upset when GOG refuses to support what I pretty much a dead operation system.

But getting things to work on XP that's not intended to work with it is half the fun of using XP :O

I'm starting to really get sick of strange, bizarre posts here pushing operating systems instead talking about the games being sold on Gog. First of all, there is no "Bioshock for Linux"--total misnomer, as there is only a "Bioshock for a particular Linux distribution." And often for any Linux distro there is only WINE--which amounts to running the Windows version of the game, anyway. And if you run a Linux distro then any game ported to Linux may or may not be compatible with your version of Linux. And last of course, games ported to Linux or run through WINE do not magically get better than the same game run natively on Windows. So, what's the point? Running on a Linux distro doesn't make the game better--in fact when it comes to hardware support, all Linux distros are far behind Windows in terms of third-party hardware support. (I, personally, had nothing to do with the comparative ubiquity of Windows compared with the various Linux distros used today on the desktop, and I certainly had nothing to do with the by-comparison very limited hardware support of all non-Windows OSes.) People who are still in the immature stage of pushing OSes everywhere they go are not going to care much about gaming, period, except to gripe and say, "Why isn't X available on Linux?" Without, of course, saying *which* Linux distro they are even talking about. It's just really weirdness.

Personally, I have no objection to anyone using whatever OS trips his trigger...! People running a Linux distro can do the sensible thing--if they are actually interested in playing games as opposed to childish OS flag-waving and cheerleading--and dual boot their favored Linux distro with Win10x64--and that way they never have to miss out on a game, ever, simply because for whatever reason it isn't made available for their Linux distro. Play your game on Windows--run your favorite Linux distro for everything else. Makes sense to me. Because you can't tell me that people who give a game a 1-star rating simply because there isn't a version available for their Linux distro--even though they don't own the game in any form--know or care much about gaming at all.

Wrong. Compatible with Linux means it uses OpenGL or Vulkan for graphics, and no proprietary libraries.
I know there isn't much profit behind a Linux release, but sometimes a software should need just minor tweaks to work on Linux.
Every modern distro makes use of OpenGL to render. You're talking about people rating a game low not knowing the game at all, but rating all the people who prefer a Linux distro to chunky Windows as childish or uncaring is any better?