There is a 'lower face lift' procedure that's been around 20 years now that pulls skin/jowls up and tightens right behind the earlobe. Often, surgeons reattach the lobe directly to the side of the face, instead of re-fashioning a new 'lobe' that hangs loose. Oftentimes, this is one difference between a 'regular-people's' lift and a ultra-premium, expensive lift job (read: Hollywood-actor level). Seems odd that Biden wouldn't have had the premium-level detail, but people's lobes aren't naturally attached like that (of course, there are exceptions to everything) - his lobes have been attached thru surgery. It's more of the cartilage in the upper and mid-ear that you need to compare - that's more of the 'fingerprint' id section for an ear. And... consider that Biden could have had a lift years ago, and a 'freshen-up' right before the 2020 election. Remember that he was the 'basement campaigner' that we all made fun of? Easy enough to hide surgical scars, swelling and bruising if you never left your basement.