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

https://dlf-ne.org/how-do-i-crop-an-anime-pfp-so-the-face-stays-readable-in-a-circle/

When picking or editing a gaming or anime PFP, focus on a clear silhouette and crop tightly around the face to keep it recognizable when small. Use a simple background to avoid distractions, and test how it looks in both light and dark modes