Yes, Google has announced that the Cumulative Layout Shift (CLS) will be used as a ranking signal in its search algorithms, starting in 2021. This means that the CLS of a website will be one of the factors that Google takes into account when determining the ranking of a website in search results.
The CLS is a measure of the visual stability of a website and reflects the amount of unexpected layout shifts that occur as a page is loading. A high CLS score can indicate that a website has a poor user experience, as it can be frustrating for users when the layout of a page shifts unexpectedly.
Google has stated that it will use the CLS score as a ranking signal in order to improve the overall quality of the search results and provide users with a better experience. While the CLS is just one of many factors that can affect a website’s ranking, it is important for website owners to focus on improving the CLS of their website in order to improve the user experience and potentially improve their ranking in search results.