I also was confused by this when I started using the plugin. The plugin is super good and has a ton of features but the documentation is lacking. Searching in this thread is the best thing I’ve found to do if you are stuck.
Assuming you are asking about the example map, yep it works over the internet. The server browser thing uses the Online Subsystem Steam and sessions to operate. I believe you need to be logged into steam and friends with whomever you are trying to play with then it should function as you expect, ie one person hosts then the other tries to find.
If that doesn’t work then you can try a packaged build, I vaguely remember reading something in this thread about the online subsystem not working in editor. I could be wrong about this. What I do know is that 100% you can connect over the internet with packaged build as I was doing it last week. I can’t remember whether it worked in editor however.
If you still can’t get it to work you’ll have to wait for the king himself