How do instagram ads look like?

Hi guys, I'm actually an Iranian and as you may know Iran is a third world country and all that and we're under the US sanctions so bcs of these reasons Instagram ad platform does not work in my country , The same goes for Youtube and other platforms.

So basically we Iranians do not see any ads on our Instagrams.

With all that being said, I'm just wondering, How do ads look like on Insta?

Do they stop you from scrolling and force you to watch an ad, or do you see an add while scrolling like youtube shorts?

Can someone please send me an screenshot or something , I actually wanna see a image/video or sth.