ADHD memes

I have a colleague who I suspect might be slightly autistic. There have been a few situations where looks have been exchanged but he didn't seem to notice, like for example when he asked our department manager for some more details in our yearly result when the manager was stressed. So the manager gives him a super quick answer that we just don't have that data. He kept asking why and brought up ideas to gather it and our manager made it very apparent that he doesn't have time but didn't say it until 2 minutes into the conversation. Everyone in the room noticed, except for that one person asking questions.

He also delivers jokes in a super dry manner that makes the words hit harder instead of saying it in a funny way.

So should I tell him? It could be a very awkward conversation if I'm wrong.