Does this really matter? He fired something like tens of thousands of Twitter employees around the globe, he can keep the thing going as long as he likes. Advertisers are already crawling back.
Also you have no source on your claim about advertisers. Elon and Linda are always reporting that advertisers are coming back. Such as when Visa spent 20 usd on ads few months ago.
[0] https://gizmodo.com/twitter-elon-musk-debt-interest-social-m...