The @EFF declares Gmail's "Confidential Mode" is not actually confidential and therefore a "misleading" name, much like "Incognito Mode" is misleading because it is not actually incognito.
Use @GPGTools or other end-to-end encryption for secure email. https://www.eff.org/deeplinks/2018/07/between-you-me-and-google-problems-gmails-confidential-mode
Original tweet: https://twitter.com/DuckDuckGo/status/1024652721582997505