Sculpted model not displaying properly in object mode

I’m new to Blender and working through a tutorial. I have sculpted the hair of this Lego character. I used a multires modifier and got the result I wanted. However, in switching back to object mode, I lose a lot of detail. What step am I missing here? I don’t see any button to apply the modifier. See attached image.

There is an option in your multires modifier for display it subdivided in sculpt or viewport or remder.
Just choose your viewport level as your sculpt.

Thank you!