Working as a bartender or cook at a restaurant? Doubt we will see a mass resignation. Unless people decide they are tired of shit treatment.
Working in IT or some similar position at a modern company? I bet we would see a larger number of people quitting. Why go back into the office? Why commute? Why do anything like that when COVID has shown that remote work is a viable option. Any company that cannot accept the new fact that workers want to be able to work remotely is going to struggle to find talent.