The main problem is to render a player body for every other player in a room. However, the player themself must see only attached hands, not his own body (and he must not see others attached hands). Is there a way to do this?
I tried to use a culling mask on cam, but it doesn't make a lot sense.
Culling mask actually make sense. Mark the body mesh with different layer should hide the body.
You just need to enable / disable it base on isLocalPlayer value.
Alternative way of doing this would be using two set prefebs.
A. One is player controlled
B. One for other player.
Where prefeb A only contains hands. But note that this come with other issue like player's body will not cast shadow as it does not exist.