Zend certified PHP/Magento developer

Uncaught SyntaxError: Unable to process binding “ifnot: function(){return customer().fullname }”

Upon successful Magento upgrade to 2.4.4 from 2.4.2, I noticed the following error in browser console as site loaded. I don’t see any references to this error message on the net nor in SO. Could you please help me fix this?

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Image below shows where the error is originating from.

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