In order to edit the "Newsletter Popup", navigate to the Toolbar > Edit with Elementor > click on the Newsletter Popup




Or go to Dashboard > Templates > Popups

Locate the "Newsletter Popup" and click on Edit with Elementor:






Please check these guides for further information:

Guide to Vamtam Elementor Builder

Popup Elementor



Next, click on the "Save options" icon and select "Display conditions":





Here, you can remove the popup from the homepage or add it to whichever post or page.


Display conditions Elementor