

it’s just not the US. I live in the Netherland and many people here think OT and bonuses are taxed differently, because they see a higher tax rate applied to it on their slip. They forget that their base salary covers multiple brackets and a tax credit. Thus has a lower average tax rate than their OT and bonuses which falls in their top bracket or even a bracket above.
Collaboration as in what? Programmers use version control or use an IDE with collaborative coding tools like Jetbrains. That stuff is OS agnostic. If you mean office work Google and Infomaniak provide similar tools as Office365.
Most offices really don’t need Microsoft. They just are stuck in their habits. And MS has a better sales team.