In Switzerland there is an app called Alertswiss which gets published by the government. They use it for critical alerts and you can also use it to see open warnings and where in the country there might be stuff happening.
Just do the same @California
And what does the majority of players use to install and play games? Yes, Steam.
Also 78 of the 100 top games on Steam just run on Linux and 90 with some tinkering. Not really sure where that 99% comes from.