Are you sure? I created a JavaScript Polyglot context in Java with GraalJS CE 21 and...
> Exception in thread "main" Polyglot sandbox limits can only be used with runtimes that support enterprise extensions. The runtime 'GraalVM CE' does not support sandbox extensions.
> Exception in thread "main" Polyglot sandbox limits can only be used with runtimes that support enterprise extensions. The runtime 'GraalVM CE' does not support sandbox extensions.