www.wysiwygwebbuilder.com

Google is asking for viewport info in the URL inspection tool, and I could not find this in the metadata in WYSIWYG.

If I include this in the Head would this work?
Could you provide this info in an update?

<meta name="viewport" content="width=device-width, initial-scale=1">

Could you provide this info in an update?

There is nothing to update as it is already available. It will only be applied to the page if you are using a layout that is flexible ie it uses breakpoints, layout grids or flexbox.