I’d love to hear from fight directors about how they solve this conundrum. If Laertes does, in fact, have his fingers credibly on Hamlet’s throat, Hamlet would not be able to request their removal. If he doesn’t have his fingers on his throat, Hamlet has no reason to say this.
So…how to proceed? Does Laertes have his fingers at Hamlet’s throat but is somehow not choking him? Is Hamlet exaggerating? I might have to watch a few versions of this scene on film and on stage to see how folks handle this.