When picking or editing a gaming or anime PFP, focus on a clear silhouette and...

https://highstylife.com/how-do-i-turn-a-detailed-game-artwork-into-a-clean-profile-icon/

When picking or editing a gaming or anime PFP, focus on a clear silhouette and high contrast so it stands out when small and circular. Crop close to the face to keep key details visible, and choose a simple background without text