Page path is the part of a page URL that comes after the domain (e.g., 'www.google.com') and before the query strings (e.g., '?query=1'). The page path can help you identify where your users go on your website.
For example, if a user visits the URL 'www.googlemerchandisestore.com/bags?theme=1', then 'googlemerchandisestore.com' is the domain, '/bags' is the page path, and '?theme=1' is the query string. In this example, the page path would be '/bags'.
Note: Non-english query parameters are not decoded in GA4 reports.