I've one question: I've used android phone (realme, which is chinese). And i remember that whenever we used to discuss somethings among our friends, i started

I've one question: I've used android phone (realme, which is chinese). And i remember that whenever we used to discuss somethings among our friends, i started used to get ads realated to that on my laptop, phone within atmost a hour. So, was realme transcribing all conversations and uploading it? Can someone answer?