In its most recent Android beta, WhatsApp is testing a new logout feature that gives users the choice to either log out while preserving their data and preferences or log out while erasing them all. While the second enables users to return with all chats and settings retained, the first functions similarly to uninstalling the app without removing you from groups. According to GSMArena, the feature, which is presently designated as “internal,” is intended for users who are looking for a brief respite and will soon go into full beta before a stable release.
WhatsApp Testing Simple Logout Option