[Chuckster]

Yeah, there is a message in that photo. Or the real Joe is so bad off they can’t even get him to be with it and cooperate long enough to get a decent photo.

There are plenty of stock photos of Biden. That one was chosen for a reason. To send a specific message, perhaps. But by whom?

[Califreak]

The first word that comes to my mind on seeing that picture of Biden is informal.

informal
Also found in: Thesaurus, Legal, Encyclopedia, Wikipedia.
in·for·mal (ĭn-fôr′məl)
adj.
1. Not formal or ceremonious; casual: an informal gathering of friends; a relaxed, informal manner.
2. Not being in accord with prescribed regulations or forms; unofficial: an informal agreement.
3. Suited for everyday wear or use: informal clothes.
4. Characterized by nontechnical vocabulary, simple sentence structure, and relatively few explicit transitions, as typified by spoken language: informal discourse.

UNOFFICIAL

2. Not being in accord with prescribed regulations or forms; unofficial: an informal agreement.

[SaxxonWoods]

“There are plenty of stock photos of Biden. That one was chosen for a reason. To send a specific message, perhaps. But by whom?”

It looks like a prank, especially given it’s location in “Past Presidents”. You can search up his actual new portrait in 2 seconds. He’s wearing a pinstripe blue suit, in front of his flags.