Create, Travel Open World or Normal Levels in UE5. Here's How. 

Thanks for the tutorial suggestion. I am open to making this in a future video.

You are correct. In order to make any node activate in a multiplayer you must use a Custom Event Node, set it to "Run on Server" and "Multicast" (if it is visual activation). Use the Custom event to activate the node. I will make a Multiplayer Replication video in the future. I suggest looking for a video on UE5 replication. I hope this helps.