6 month old hands - concern?

Danica

Anyone’s littles seem to keep their index finger and thumb bent in 30% of the time or when he’s upset. He certainly opens his hands to grab but it seems at times these two are kept bent. I’ve mentioned it to physio and they don’t seem concerned since he’s opening it to but just wondering if it’s just him or something to it.

He’s 6 months old but 4 months adjusted.