No, the Instagram app does not offer a built-in feature to enlarge profile pictures. You need to use an external app like Zoomer for Instagram to enlarge your profile picture.
Enlarging the profile picture can affect the quality of the picture, especially if the picture is greatly enlarged. It's recommended to use a high-resolution profile picture to ensure it looks good at larger zoom levels.
Yes, enlarging your profile picture on Instagram is allowed. There are no specific Instagram policies that prohibit enlarging profile pictures. As long as you do not violate any other terms of use, you can enlarge your profile picture as you wish.
How the Instagram profile picture instazoom function works is very simple.