It's my own belief that people during the pandemic realized how much of their time they were losing to work. I work daily, then had a commute, and spent the weekend doing chores.
Working from home, when it was slow, I was able to do chores while I worked from home, giving me free time on the weekends.
People worked on budgets or on 'side-hustles' as a way to make money, and weren't so eager to come back and loose that free time, so they left their jobs, especially if they were getting just minimum wage.