It’s a BS headline and their own article update shows that

“After this story was published, Conrad emailed Sonos employees saying that “Deirdre has for some time been contemplating a move to London for personal reasons. She generously agreed to stay on well into my transition. So while it is true that she plans to depart Sonos at some point, we have not yet determined the full details and she has not resigned.” The interim CEO added that “none of this has been or is a secret.””