Significant CLS from "site grid-container container hfeed grid-parent"

OK, so that should stop the Logo from causing any issues as i can now see the correct size attributes being loaded.

Now the main cause of CLS is the WP Rocket is CSS optimizations.
If i test the site without WP Rocket by adding the ?nowprocket query string to the URL ie.

https://www.leveeroadstudio.com/best-free-script-fonts-on-canva/?nowprocket

Then the CLS is 0

You need to find which setting in WP Rocket is causing the issue.
Its generally an option within their optimized CSS Delivery that causes.
Either disable one option at a time to find the culprit, or ask WP Rocket support to take look