Except for rare random differences with dedicated servers yes.
If you package shipped you need to also include an app_id.txt file in the .exe directory with your steam app ID in it.
Dev is nice for testing because you retain console and debug rendering.
Edit That being said, I tend to test new multiplayer things with two flat pawns in editor, and then package out to test specifically in VR at the end of the feature to ensure it works right. The core multiplayer work being done for my plugin I don’t need to re-test base things too often. is waaaaaaaaaay faster iteration and retains easy debuggability and easier profiling.