Can I share only the guest Wifi password via iPhone?

I’m about to change my Wi-Fi password and name. I’ll create a Network/Admin Password and a guest password. The guest password will only give them access to the Wi-Fi, while the Network/Admin Password will give them full access. When I share my password via the iPhone share feature, can I only share the guest password, or will it give them both, or just the Network/Admin Password?

If I can just share the guest password, How would you do that?

[Re-Titled by Moderator]