Are these actual chow Mein noodles or fried chow Mein noodles to be used as a topping?

So, I see these all the times at the grocery store but mostly always used as a topping for Chinese won ton soup or such. I don’t exactly see myself ever using these to make actual chow Mein recipes. The chow Mein noodles I used were quite smaller and a lot less puffier, more noodle-y if I dare say so.

These kind of reminds me of when I would fry rice vermicelli to get it to puff and make some fun topping. So is that what they really are or am I missing out on something?

by Lightbulbbuyer