I've read all the documentation regarding CLS and what causes websites to have CLS. I'm having a tough time figuring out what is causing the CLS for the users. And how to stop the CLS for those given users.
I've taken the correct measures to ensure that iframes have a height and width, ensure that the space is saved for the ads, to ensure that there isn't any shift in content.
An example is this page where there is only static content: https://www.nookfriends.com/cookie-policy
When I run the pagespeed insights it says in the that the field data that customers have seen CLS of 0.34 which is very high: https://developers.google.com/speed/pagespeed/insights/?url=https%3A%2F%2Fwww.nookfriends.com%2Fcookie-policy&hl=en_GB
Is anyone able to help figure out what's causing the shift and how i'm able to reduce the shift?