When choosing or editing a gaming or anime PFP, keep the face cropped tight so...

https://research-wiki.win/index.php/Why_Does_My_Avatar_Lose_Detail_When_It_Gets_Compressed_on_Mobile_Notifications%3F

When choosing or editing a gaming or anime PFP, keep the face cropped tight so it’s easy to see in a small circle. Make sure there’s good contrast between the character and background—simple backgrounds work best