I agree. There is simply a lot of inertia on Windows heavy game development. Unfortunately, Windows will be needed for a long time for classic titles that probably wont be officially ported. Browsing through the list of top played Linux titles I am surprised by the many games I own that have since been ported, but I still see mostly indie titles. Until the really 'AAA' devs like Activision, EA, Ubisoft make changes I don't anticipate a n OS shift for the enthusiast crowd.
> Unfortunately, Windows will be needed for a long time for classic titles that probably wont be officially ported.
I don't think that is necessarily true. WINE does a wonderful job nowadays to run older games - while the support for DX11 is still very much work in progress. Most DX9 games run just fine, and older versions of DX have little to no issues either. IN some cases WINE does a better job running an older Windows game than Windows 10.