Working for an American company from Australia, I've noticed a tendency for Americans to work overtime to meet a deadline, and Australians to vigorously oppose their peers from doing so. I've even seen people set up alerting if anyone makes commits outside of work hours.

There's an unspoken agreement that if someone puts in overtime and others don't, it makes the non-overtimers look bad and that that the overtimer should be _cut down_.

Probably not quite tall poppy syndrome, but maybe an adjacent phenomenon.