I don't think anyone is suggesting that there be a complete move away from Windows to Linux or macOS. Look at Minecraft. It's Java based and works on many platforms, and very well. Multi platform support is a nice thing to have but you're right, the market share is low. With all the restrictions on Windows 11 and Windows 10 going end of life in 3 years... Linux is a great option for those who don't want to buy into the Apple ecosystem. I work in IT and I've used nothing but Windows for a majority omy life. Now I use Linux on all my home systems with the exception of my work PC. The life of your hardware can be extended by sticking to Linux. It's also more reliable especially with kids who like to tinker.