Restricting Widgets

same quesiton

There’s an example here https://www.ads-software.com/plugins/widget-logic/other_notes/

? !is_page(‘about’) — everywhere EXCEPT this specific WP ‘page’

But there’s also a warning re using is_page in the FAQ too https://www.ads-software.com/plugins/widget-logic/faq/

Reading all the FAQ..still can’t find the answer. I need similar situation to work in my webpage https://baligooglebook.com