This is why Christmas shutdowns (and Thanksgiving) are the best holidays. Whenever we have a new person, we tell them how seriously we take the shutdown and to not send the team any emails until after.
In 2020, we had a manager join from a different FANG and she sent two emails the first Monday of break. Apparently another manager immediately texted her and told her to stop!
Maybe it's because I am French but all these stories about people working during breaks is insane.
In all honesty, I have several work pals who do read their emails when on break (their choice) - I prefer coming back to 500 to 800 emails, quickly go though the important ones and realize that 8/9th of the problems solved themselves without my intervention.
In 2020, we had a manager join from a different FANG and she sent two emails the first Monday of break. Apparently another manager immediately texted her and told her to stop!