So the issue is related to WebP – the way the server is delivering that logo is delayed and absent of the image height property. You can of course set a minimum height to the site header to stop the CLS:
By the way, I’ve got a similar issue with this site https://moonpicker.com/
Although I adjust the logo size, it still comes as a big size logo, then reduces following the navigational manu height.
I am sure to improve the CLS, I need to add some CSS.
Thanks in advance.