@Adventurer I suspect the orals will take care of it.
This looks like king-of-the-hill cat stuff. I can't say for certain, but one might be restless from wearing the cone, and the other might be jealous b/c the cone-wearer was getting attention. I'd expect it to calm down to normal behavior soon.🤞Perhaps, if your vet puts one back in a cone, were I you, I might consider putting both of them in them then, to rule out jealousy when they come off. 🤷♂️