The pandemic and people being furloughed resulted in a lot of people working daft hours getting a taste of life outside of work for probably the first time in decades in some cases and they found they quite liked being at home at normal mealtimes, getting to spend time with family and friends, do hobbies and social activities. Couple it with the fact that 50-60hrs a week, week in, week out for years usually leaves you mentally and physically broken then it comes as no surprise that those who could afford to retire early, go part time or go for a lower paying job with more sane hours did so.