Yes but nobody is stopping you from adding your own proxy which enforces any type of authentication you like, and in my opinion that's the more sensible approach here anyway.

I don't think it's sensible to expect every project like Ollama to ship their own half-broken authentication and especially anything resembling a "zero trust" implementation. You can easily front Ollama with a reverse proxy which does those things if you'd like. Each component should do one thing well.

I trust Nginx to verify client certificates correctly so I can be confident that only traffic from trusted users is able to reach whatever insecure POS is hiding behind it.