What this tile shows
Squizzie calls this one Top Pages. It has a layout built for this tile rather than a plain figure.
Where the number comes from
Google Analytics. Traffic, sessions and conversions from your GA4 property, read through the Google Integrations hub.
What you need for it to appear
A connected Google Analytics property. Squizzie connects through the Google Integrations hub, so it is one sign-in rather than an API key.
The fuller picture
This is one figure out of a bigger subject. Google Analytics without the other tab covers it properly.