I do not know if you have heard but it seems that from 8 February whatsapp will change its privacy policy for users outside Europe by crossing whatsapp data with those of facebook perhaps for better advertising profiling, may it be of interest to users? yes why? if you are on a working whatsapp group, other users will be able to go back to your facebook profile
Then the Privacy will not be completely there? because other users can check your Facebook account in which i believe that Both site must have their own users choice to let the extension happens or searchable or not.
Good thing that is topped using whatsapp back in 2018 and until now has not been visiting the site that long.