That is what it seems like based on what I have read :/

I guess the best option in my case then is likely to add them as a non-admin user to my tailnet. The only concern I have is with the potential of one user deactivating the VPN connection unkowingly, which is probably where Funnel comes in as a better option, but I would prefer to avoid serving stuff on the web when possible. (It is specifically a FreshRSS instance for now)