https://legislature.vermont.gov/statutes/section/21/005/00472b

In theory, the law protects the right of all non-essential employees to attend Town Meeting, as long as they provide 7 days notice.

In practice...well, honestly I'm not even sure many people are aware of this law. Willing to bet that lots of businesses would just declare all their scheduled employees to be "essential," but I also don't get the impression that there's an awareness of the ostensible legal protection here.