I'm using outlook on Linux (at work), it has a web interface. Office 365 works on Linux. As for games it's entertainment, you can choose what you play. There are alternatives for pretty much everything (Figma, Gimp. Krita, Blender). Even if Linux gets 50% of the market some companies/game studios still will not support it. We will never get to 100% support so that's simply unrealistic goal. You can disagree but for me the goal was to make sure that Linux will not get abandoned and die. The danger was in proprietary protocols and standards, in closed source firmware and drivers. Today it may seem obvious but when I was using Linux 20 years ago it was only possible because someone was reverse engineering protocols and drivers. Main communicator on the internet had only windows client, lots of hardware didn't have Linux drivers, MS was actively trying to kill Linux by promoting closed standards. It was a real possibility that this shit will spread and make Linux on the desktop unusable. Today we're passed that. We won. If someone is on windows it's because they want to play specific games or use specific software. Their choice, I don't care.