Microsoft is a level of entrenched that Linux practically won't be able to beat for reasons that have little to do with technical viability and everything to do with legacy tools, having software that works with business formats (Office; any other office equivalent on Linux will still have compat issues and as long as those exist, they won't be a valid replacement - for much the same reason, although not fully locked to their platform, Adobe is a permanent barrier to Linux adoption) and video game DRM on popular titles keeping them basically in that position forever.