No, Instagram does not offer built-in profile picture editing tools. You must use an image editor to resize your profile picture.
There are many good image editing software options, including Adobe Photoshop, GIMP, and Canva. Choose a software that best suits your needs and skills.
Yes, the quality of your profile picture can affect how other users perceive you. A professional-looking and well-enlarged profile picture can help you get taken seriously on Instagram and get more followers.
An important part of your instagram profilbild is your profile picture.