Hello, responding to your question. In this case, it's different. What we are using are mainly HTML5 Sound features since this allows us to have multiple audio channels, which is what we needed for the plugin to work correctly. RPG Maker MZ has channel limitations, so it is handled differently :)
Anyway, I invite you to try it out and see if it works for you and is useful. If you need anything, I will try to help you.