The original article is from The Washington Post [1]. In this article, it is not linked, but mentioned. This dw.com article describes what The Washington Post reported.
I'm unsure why so many publications don't directly link the article that they effectively are re-wording in parts?
FWIW I also cover Meta every now and then in The Pragmatic Engineer. After reading The Washington Post article, I reached out to engineering leaders working at the company who basically confirmed what the Washington Post wrote. Layoffs are to be expected, likely this week. Also, some other signs pointed to this, like Meta having people return from business trips by the weekend (so by now everyone is in their primary work location), cutting them short if need be [2]
[1] https://www.wsj.com/articles/meta-is-preparing-to-notify-emp...
[2] https://twitter.com/GergelyOrosz/status/1589504531804876802