I don't think that is as true now. Microsoft has made in-roads in a number of markets, which has to concern some competitors. Within the last few years they left slack in the dust by bundling teams. They also bought github just a few years ago. A couple years before that linkedin, which there are still no real competitors to. Their cloud market share has been increasing and they're increasingly pushing the integration of the Microsoft 365 suite and github with azure, which has been pushing more enterprises towards their offerings. Microsoft has also started throwing money around to organizations which they want to work with, such as OpenAI and G42, effectively choosing winners.