How do you mean? There were major loans to buy Twitter, but AFAIK Musk brought on a bunch of other people so that's not entirely on him. Other than that what is he extended into?
His companies are supporting each other in weird ways like xAi intercepting Tesla's GPUs, xAi being separate from X which is where it's used, Boring building one of its few tunnels in a Tesla factory for ???, the employees from one working at another, etc. there's probably a lot of shenanigans going on to make each company look OK at the right times.
The one that has to be somewhat transparent is looking pretty shaky
