When choosing or editing your gaming or anime PFP, go for a strong silhouette...

https://high-wiki.win/index.php/How_Do_I_Choose_Between_a_Character_Pose_and_a_Close-Up_for_an_Icon%3F

When choosing or editing your gaming or anime PFP, go for a strong silhouette and simple background to keep it visible as a tiny circle. Crop close to the face to highlight key details, and skip text or busy patterns