Around four-in-ten (42%) say they have taken a break from checking the platform for a period of several weeks or more, while around a quarter (26%) say they have deleted the Facebook app from their cellphone. All told, some 74% of Facebook users say they have taken at least one of these three actions in the past year.
http://www.pewresearch.org/fact-tank/2018/09/05/americans-are-changing-their-relationship-with-facebook/