Under the default cofiguration, when a player joins a Vivecraft server without any VR mods (no Vivecraft or companion), the chat message announcing their arrival is " joined as a Muggle". The message can be found here in the repo. At the end of the day this is not a huge deal, but it may be worth replacing it this message. The Harry Potter franchise has something of a reputation for the unfortunate actions of its creator, and the use of heavy antisemitic stereotypes; unexpectedly seeing it referenced so casually may come as an unpleasant surprise to some players. The franchise's creator is also known to leverage its cultural relevance to enact tangible harm on marginalized people through political action. As such, it seems like it would probably be in good taste to replace the message. Depending on what it is replaced with, this could also improve the clarity of what the message is intended to communicate.

Possible alternatives could be "<player> joined without any VR mods", "<player> joined as a mortal", "<player> joined with no VR support", etc.