Are you planning to build plugins/modules? We do not use VSCode internally for Wowza development, so we aren’t the best folks to ask. Maybe someone else in the community will chime in. At a minimum you would need to make your own project templates.
That said, I know there are a ton of extensions you need to make VSCode work with full Java language support, not just syntax. https://code.visualstudio.com/docs/languages/java