In April 2022, Elon Musk started the process of trying to acquire Twitter.
The company was in a constant state of turmoil, with Musk trying to back out of the deal, the board trying to stop him with a poison pill, the board then forcing him to buy the company, etc.
All the while Elon was talking about how many people needed to be fired and how much he hated remote work. A number of Twitter Boulder employees left due to the uncertainty, cutting down the already-shrunk number of people there.