Israel was among the first countries to reach a vaccinated majority in March 2021, thats likely where this common wisdom comes from. but since then it appears that the vaccination rate has stagnated.

From Aug 20, "That means only 58% of Israel's total citizenry is fully vaccinated. [1]"

[1] https://www.npr.org/sections/goatsandsoda/2021/08/20/1029628...