JQuery Request

It seemed simple to me to add JQuery code to the extra field with custom HTML (it says that script can also be used there). However, if I copy the source code from https://ajax.googleapis.com/ajax/libs/jquery/3.6.0/jquery.min.js and place it there, Zaraz prints it on my web page instead of executing it.
I tried to add it within script and without script, but nothing works. Firing triggers is placed on pageview.
Unlike Jquery, for example, the Quantcast script consent code works without any problems.

Custom HTML needs HTML. If you’re pasting pure JS into it, you should wrap it with a <script> tag.

It does not works with or without script tag. With script tag website drop 400 error:
“Request header too large”