How to cut into an object that has a sub surface modifer with out changing the overall shape I am trying to model Hornet from Hollow Knight, and I am not sure how to make the eyes.
How would you suggest I make holes in the object for the eyes without affecting the shape of the rest of the object.
Select these vertices and delete them, it will make 2 holes:

Select the border edge loop:

Extrude and scale down, press AltShiftS to round the selection, then give it the shape of the eyes: