“At Microsoft, the share of senior employees as a portion of the company’s overall workforce declined more than 5 percentage points after the return-to-office mandate took effect, the researchers found. At Apple, the decline was 4 percentage points, while at SpaceX — the only company of the three to require workers to be fully in-person — the share of senior employees dropped 15 percentage points.”

https://www.washingtonpost.com/business/2024/05/12/rto-microsoft-apple-spacex/