Your Google search results show the date on articles do they not? If people are more likely to click on "Celebrity Net Worth (2021)" than "Celebrity Net Worth (2012)", then the algo will update to favour those results, because people are clicking on them.
The only definitive source on this would be the gatekeeper itself. But Google never says anything explicitly, because they don't want people gaming search rankings. Even though it happens anyway.
The only definitive source on this would be the gatekeeper itself. But Google never says anything explicitly, because they don't want people gaming search rankings. Even though it happens anyway.