Steam has a lot of 32bit only games. And it relies on WINE to run them. I doubt they have 64bit version of all their popular games.
That is why windows is king for so long - the thought of dropping backward compatibility is unthinkable. Instead you do horrendous hacks to get things to work (such as having two different system folders - 1 for 32 bit executables and one for 64bit executables)
That is why windows is king for so long - the thought of dropping backward compatibility is unthinkable. Instead you do horrendous hacks to get things to work (such as having two different system folders - 1 for 32 bit executables and one for 64bit executables)