This is a Measurement ID, not a Property ID.

Where do I get the GA4 Property ID?

Content Group - GA4 Report        Save in GA4  
Content Group
Create a custom GA4 'Content Group' report and save to your GA4 library. It's the easiest way to create multiple reports across GA4 properties.

GA4Builder only works on desktop, so please come back on a desktop computer to create reports.