Agreed - Anything with a data, should have the same operator options as a date field, documented here: https://experienceleague.adobe.com/docs/marketo/using/product-docs/core-marketo-concepts/smart-lists-and-static-lists/creating-a-smart-list/smart-list-filter-operators-glossary.html?lang=en
For example, with a Visited Web Page filter, the data of activity constraints should also include "in past before."
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