Even worse a lot of Angular ecosystem still relies a lot on a previous Decorators proposal that was withdrawn at Stage 1. If you are still using the `experiment

Even worse a lot of Angular ecosystem still relies a lot on a previous Decorators proposal that was withdrawn at Stage 1. If you are still using the `experimentalDecorators` flag in your build you aren't using the Stage 3 version of Decorators (which don't have a build flag, just a target requirement).