[cestith]

It's a bit of chicken and egg. Marketshare is small in part because there's not a clear winner (or even two clear major leaders). People don't invest because there's no consensus on which to support. Because there's no consensus, there's no impetus to invest. Because there's no support for these apps that are Windows only or Windows and Mac only, the users aren't there to demand the support.

If a coalition (or cabal if you'd like to phrase it that way) of software vendors formed to select, build, or define a distro for the business desktop it'd become a more viable option.

If it was installed broadly at work, many people in turn would look for it for home use. It's how MS-DOS and then MS Windows became the de facto standard in a time of CP/M, Unix, Apple DOS, Atari DOS, GEOS, Amiga Workspace, OS/2, and MacOS. Having a single majority OS didn't happen because it was superior. It happened because of network effects.