I found 2 extension are named Live Sass Compiler. One of them which developed by Ritwick Dey has been deprecated. And it was not compatible Dart Sass (@use or @forward). Another one is compatible.
https://marketplace.visualstudio.com/items?itemName=ritwickdey.live-sass (deprecated)
https://marketplace.visualstudio.com/items?itemName=glenn2223.live-sass
So what kind of Sass is Live Sass Compiler using? Node Sass, Dart Sass, or not of them?