A person asked again from John Mueller whether if there is a sudden ranking drop of sites having poor score of Core web vitals. John reverted that there would not be a sudden drop in ranking for these sites. He added that ” We are rolling it out slowly over a period of 2 months.”
Recommendation:
Check out the Tweet:
No, we're rolling this out slowly over the course of about 2 months.
— ? John ? (@JohnMu) June 14, 2021
As we all know that the page experience update will be postponed and will roll out any time but it won’t affect ranking of sites as it roll out very slowly. Also it has low impact thus won’t affect ranking much.