Recently, there has been a significant rise in the number of US workers leaving their jobs in search of new ones with better benefits. This trend has been coined "the Great Resignation' and has paid off for many workers, as data shows that those who switched jobs experienced larger wage growth than those who stayed at their jobs in 2021. This labor market trend is also related to the tight labor market post-pandemic. Even as inflation begins to slow the US economy, there is still a high demand for labor that is providing leverage for employees.
See "The Great Resignation has brought larger wage gains to workers who switched jobs rather than stayed at their old ones", Jane Thier, Fortune, January 4, 2023