It's a little on the nose.
This man is called Sean Combs.
He has a preferred name.

That’s great.

Me, I like other people do call me Superman. Some do, out of pity probably. But most people who actually matter, like my employer, the postal services or the taxman, call me John B. Nobody.

This inmate’s name is Sean Combs.

His name is Sean Combs but he is called Diddy because that is his stage name, which he used for decades.

Is the meme a courtroom proceeding?

There’s no stage in court, and there’s no stage in prison, is my point. Diddy died when Sean Combs was booked by police.
Screen name checks out 👍👍