As the title states, I don't want the multiplayer screen to save history after connecting to a specified server using a custom button, as this would expose the server address and port more easily.

Please consider this feature. Thank you.

The user can also just open the layout file and get the IP as plain text. I will not change that, sorry. If you don't want the user to access the Multiplayer screen, remove the Multiplayer button and replace the "Leave Server" button with a custom one that executes the "Leave World/Server" action.