Is there a way to turn off the share panel only for guest / external users? this is a serious GDPDR related problem (data privacy). I need them to be able to access the site but not to access the share panel. In fact, I need them to not be able to even access that panel because searching for users is also a problem.
I already know the setting in sharepoint admin center (see screen), but this doesnt help for searching for users in share panel.