There are browser extensions like "Instazoom" that allow you to enlarge Instagram profile pictures. Install the extension in your browser and follow the instructions to use Zoom features.
No, Instagram does not offer a built-in zoom feature for profile pictures. However, you can use external tools such as browser extensions.
Instazooming a profile picture can reduce the quality as the image can become more pixelated. It is recommended to use high-resolution images.
Use the tips given here to effectively enlarge and optimize your instagram profilbild picture.