You can open WhatsApp with just one click in the Facebook-app. Whatsappen.nl found out after a reader’s tip.
The link to WhatsApp is in the main menu (3 lines) of the Facebook app.
It’s just a shortcut that makes it easier to switch between accounts within the Facebook group. No changes are made to your account(s). You can also open Instagram this way.
It’s one of the most visible parts of the WhatsApp integration after the takeover by Facebook.
Earlier, WhatsApp was already sharing information with Facebook to improve products and security. Facebook also uses data to improve Facebook products and ads on Facebook, although this is currently paused for EU users.