We chose to go with a client-host approach since we do not have the knowledge or money to deploy servers. UE5 has everything ready out of the box for online games (RPCs, Replication, Subsystem for Steam, etc). It's quite something developping a multiplayer game, but fun nonetheless. We still have some lag issue with character movement (rollback), but other than that it's working perfectly fine (if the code is correct haha). I'm happy to see that BenGaming3662 found my page!