왜 안드로이드/크롬OS로 만들어진 스크래치 앱은 WebGL를 지원하지 않나요?

Recently, an issue arose where certain devices which couldn't use WebGL Version 1 were only able to access WebGL Version 2. With WebGL version 3.0.63, the Scratch app will automatically use the correct version of WebGL and should work just fine. 

If you install the latest version of the app, it should resolve your problem.