On whether Google uses pogo-sticking for ranking, two kinds of sources give different answers.
Google has said no. In a webmaster hangout in July 2018, John Mueller answered a question about this pattern: "We try not to use signals like that when it comes to search." There are many reasons for going back and forth, he said, so it is "really hard to refine" into a ranking factor. That is Search Engine Journal's transcript of July 16, 2018. In a Reddit Q&A on February 8, 2019, Gary Illyes went further and dismissed dwell time and CTR as baseless theories.
Against that stands a court ruling. In the antitrust case United States v. Google LLC, Judge Amit Mehta found on August 5, 2024, based on witness testimony including from Google employees, that the Navboost ranking system remembers which documents users clicked after entering a query and is trained on 13 months of user data (before 2017: 18 months). Google itself also writes on its How Search Works pages that it uses "aggregated and anonymized interaction data to assess whether search results are relevant to queries".
Both can be true at once. Google uses clicks in its ranking systems, and no primary source says whether a quick return to the results list counts as a signal of its own there. The internal documents leaked in May 2024 include fields such as "goodClicks" and "badClicks" in a Navboost module. On May 29, 2024, Google cautioned against assumptions based on "out-of-context, outdated, or incomplete information", and a field name says nothing about how the field is used.