Explanation for updateStateModifier

[Harsh Gupta]

While going through this snippet

     placement,
     positionFixed,
     modifiers: {
       ...modifiers,
       arrow: {
         ...(modifiers && modifiers.arrow),
         enabled: Boolean(arrowNode),
         element: arrowNode,
       },
       applyStyle: { enabled: false },
       updateStateModifier: {
         enabled: true,
         order: 900,
         fn: updatePopperState,
       },
     },
   });

I couldn't understand what updateStateModifier is enabling here exactly. Going through the Popperjs documentation on Modifiers there wasn't anything much relatable as this is added as a 10th attribute to modifiers which has the order equal to the highest order i.e of applyStyle which has been set to false. Does this replace the work of applyStyle?