Generally, you define a market by the market participants. There are people who need only the the office suite, and there are those who need the office suite and the colab chat but not necessarily by the same provider. This is visible by the fact that you have colab software providers like slack/zoom.
Microsoft is targeted at the moment because they are market leader on the office suite market and they are leveraging this position to capture the colab software one. Google is not a market leader and in addition, they don't have offline tools to separate from their workspace, though this is less significant than the market dominance.
Microsoft is targeted at the moment because they are market leader on the office suite market and they are leveraging this position to capture the colab software one. Google is not a market leader and in addition, they don't have offline tools to separate from their workspace, though this is less significant than the market dominance.