There is no honest universal countdown. The useful question is which parts your team controls, which signals need external processing and how progress will be recognised before the final outcome arrives.
An identified fix produces no value while it waits in a backlog. Site access, engineering capacity, legal review, content approval and release cycles often determine the first part of the timeline more than the recommendation itself.
After release, pages must be recrawled and signals re-evaluated. The timing varies by site, URL importance, change type and competition. New domains also lack the history and authority of established competitors.
Before revenue or broad ranking movement appears, teams can verify that fixes shipped, important pages are discovered, impressions expand, target URLs replace competing pages and qualified landing-page activity improves.