(Concern) Cataract surgery stages

It seems that suddenly there are more people around undergoing cataract surgery.

I'm wondering at what point, when the vision is just blurry and not clear, surgery becomes necessary or how severe the condition needs to be for surgery to be required.

In my case, every morning when I wake up, the world is always foggy, as if it's covered in mist.

I wake up, blink a lot, do some massage, and gradually feel clearer. If these are also symptoms, are they considered symptoms?

Or is it just because I'm tired?

I have presbyopia, floaters, and poor vision, but there is nothing white or cloudy in my pupils. I am wondering if this is an early symptom or if I don't need to worry about it specifically.