They’ll tell you that this is unchangeable, it’s the default, etc the first few times, but if you persist, they’ll usually just strike out a clause like this if they actually want to come to an agreement. They may not even bother telling legal (depends on company size).
Really it depends whether you’re negotiating from a position of strength and and can walk away, if you are changes like this become possible, if you are not changes are more difficult.
I've never had any HR person give up even a comma in a contract like this, even after a full week of back-and-forth negotiating and trying to get them to strike out an individual sentence or change a word. Their attitude is that even if they lose their first choice hire over it, they always have a pipeline, and they'd rather adhere strictly to legal protocol and go with their second-choice hire.
Really it depends whether you’re negotiating from a position of strength and and can walk away, if you are changes like this become possible, if you are not changes are more difficult.