"It is unclear how meaningful stepping down as chief executive would be. The billionaire owns Twitter... and will remain its proprietor."

"On Sunday, he tweeted that he had no successor and suggested that there were no qualified candidates to lead Twitter. 'No one who wants the job can actually keep Twitter alive,' he posted. As soon as Mr. Musk took ownership of Twitter on Oct. 27, he fired its top executives. Other senior leaders have since been fired or resigned, leaving the executive suite vacant.... [Musk] has borrowed employees from his other companies, including Tesla and the Boring Company, a tunneling start-up, to join him.... Mr. Musk has also relied on Tesla and SpaceX employees to deal with technical matters, as layoffs and resignations have decimated Twitter’s engineering ranks.... Mr. Musk, who was in Qatar for the World Cup final this weekend with Jared Kushner, is also seeking new investment in Twitter.... On Friday night, the company began another round of layoffs.... Twitter, which had about 7,500 employees when Mr. Musk took over, has lost roughly 70 percent through layoffs, firings and resignations. The Information earlier reported the most recent round of cuts."

From "Elon Musk Says He Will Resign as Twitter C.E.O./When He Finds Successor Mr. Musk, who asked his Twitter followers on Sunday if he should step down as head of the service, will remain the company’s owner" (NYT).