I don’t have Instagram but, before I deactivated my account, I did that on Twitter. I decided I only wanted art/literature, I stayed in the “for you” mode and it gave me exactly that. Also a little less ads. As soon as I went back to follow mode and interacted only with the accounts I followed, It started to change. If you don't mind being profiled as a product all the time and getting something of value in return —depending on what's valuable to you— that's the way to go.