That's also part of a sick culture. I've seen places where working on your free time and/or weekends would be totally frowned upon by managers, and the general

That's also part of a sick culture. I've seen places where working on your free time and/or weekends would be totally frowned upon by managers, and the general culture around workers would be that working on weekends is giving up your time for free in an attempt to clib on the other's backs, so that wouldn't be very popular among your colleages.