Unfortunately, js2-mode's parser isn't updated to keep pace with modern language development. I've had much better results over the last year with an LSP integration, and rarely if ever go back to js2-mode these days.

Similarly, while js2-mode's built-in formatter is quite good, Prettier is both more (and more easily) configurable and more shareable - it can enforce an agreed-upon style at the codebase level without any editor-specific tooling or configuration, and the consequent absence of bikeshedding is welcome.