Search/Address Bar shows all previous searches/autocompletion in dropdown window

Hi, when I start writing a search into the search/address bar, brave (or is it startpage to which it is linked?) automatically suggests all my past searches in a dropdown window. This is anything but private if I am working with other people together. I went into the settings - privacy/security and I don’t have autocomplete searches and URL activated, so I don’t know why it’s still doing this?
thank you for assistance.
best, Manny