Many people think their photos / messages that they send in delete after view mode. ( Suprise they arent, everyone can crack that and review the message/picture.) The snapchat AI is bs on another level, you ask him

“Do you know my location” => “No i dont know your location”

“Can you guide me to my next mcdonalds” => “Here is one in 3km at xyz street…” ( Actually correct mcdonalds )

And Data Privacy is not existing. So dont expect if you search something, that ads arent going to popup.