Cookiebot Where are the script tags

This is probably a novice question, but only been using WordPress for only a couple of months and have a basic understanding of HTML.

I installed the plugin and successfully added the declaration banner at the bottom of my page. Now I’d like to block the unnecessary cookies from loading before the user gives their consent.

My report states there are many cookies that need classification and in particular the you tube video
I have looked in my header.php file but cannot seem to find any script tags with the search function. Can anyone please help me locate them?

Many thanks

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