You can click one URL in search results and watch a different URL collect the click in Search Console. That is how the Performance report assigns credit. The Pages tab follows the canonical Google chose, not every address that appeared.
A click on the duplicate counts on the canonical
Google's dimensions article says most performance data is assigned to the page's canonical URL, not to a duplicate. When someone clicks a duplicate URL in search results, the click counts toward the canonical, not toward the URL the person visits. The Pages row you are staring at may never have been the link on the results page.
The Pages tab uses the final URL after redirects in the result
The same article says the page dimension groups data by the final URL linked by a search result after any redirects. That is the result link, settled. It is not "whatever URL the browser ended on after your site took over."
Mobile and desktop can share one row
The impressions and clicks article says click, impression, and position data for variants of a page go to the canonical Google selects. Variants include a separate mobile URL and a desktop URL, and sometimes an alternate language URL. You do not add the mobile rows to the desktop rows yourself. They are already one URL in the report. Filter by device when you need them split.
Both are credited to the canonical Google selected. Filter by device to split them.
A redirect after the click does not move the credit
Google is explicit here. If your site redirects the person to another page after they land from Google, that has no effect on the URL assigned the impression or the click. The hop from an old path to a new path is invisible to the Performance row. Fixing the redirect changes the visit. It does not reassign the historical click.
- 1URL in the search resultGets the click
- 2Page your redirect opensNo credit
Check the canonical before you rewrite the wrong URL
The dimensions article says you can learn the canonical for a page with URL Inspection. If a URL you care about has no clicks, open Inspection and see whether Google selected a different address. Then read that address in the Pages table. The indexing guide covers the case where the URL is missing from the index entirely. This one is the case where the clicks exist, on a URL you were not watching.