https://gs.statcounter.com/os-market-share/desktop/worldwide
Still less than 20% of the market. And I feel like the main reason they're even usable as a desktop OS is because 99% of most people's computer activity takes place in a web browser and not because OSX has a particularly special native app collection. Hell it seems like the only time I fire up my mac is because I need to build an iDevice app and nearly every "native" mac app I run is really Electron based.