So at least temporary he would lose control.
In this case, they can file, rollover the debt into a new company with no financial loss and then recap the equity with Musk (who obviously has the money to do so) and other shareholders.
Also, the banks who own the debt do not want to run Twitter. All they want is to be able to mark the loan as performing...that is it. In cases where debtholders take over the company, the debt has usually been sold for significantly less than par to someone who wants to run the company. This isn't the case here because the debt is still worth par (imo, largely because it is obvious that a recap would be straightforward...it may be the case that Twitter's financial position is significantly worse, but we will need to wait and see).
Obviously, the question for the leases is how much it is, whether it is worth it, whether the landlord thinks they can get a new tenant (unlikely at this point), and whether the company can be relocated...the lease would have to be a rather large proportion of expenses to make this all worth it...but it may be worth it if the company is going to recap anyway (which seems likely).
This might have been true on October 26th. It's not obviously true today.
Part of it is that due to the (IMHO absurd to be legal) financial instruments Musk used to loan (part of) the money used to buy twitter, twitter has now a pretty high financial burden. Means it now has to earn much more to be profitable then before. (It was something which you could oversimplified describe as Musk taking out a lone in the name of twitter before being able to represent twitter to buy twitter..., in practice it's more convoluted then that but it's kinda similar.)
Through in the broader picture this specific case of Twitter is more then an indicator for something being wrong, like either impending Bankruptcy, him doing improper business and being very untrustworthy or him crippling the operations department to a point where Twitter has lost overview about what they need to pay where.
The banks who own the debt* do not believe so.
[Edit: early article postulating 20% writedowns https://www.reuters.com/markets/us/musks-banks-book-twitter-...
recent news with 50+% as a more appropriate writedown than 20% https://www.reuters.com/technology/fidelity-marks-down-value...
* because they haven't been able to sell it to anyone]
The 50% markdown that Fidelity is taking means that it is worth more than $20bn. Classic HN.
Care to explain? When the debt is already being marked down, how does the equity have any positive value? (other than maybe extreme variance, but I still don't see how that gets anywhere near 20?)
Anybody taking over Twitter will have years of work ahead of them to rebuild trust with advertisers, let alone addressing the core problem of growing user numbers. That was Musk's original job, which is not going well, even after he reinstated pillars of society like Andrew Tate and Trump.