I agree with this. I've record how much time I spend each day with work-related activities for the past five years.

There's no way I could sustain working for more than 5 hours a day. I might exceed that in a pinch but I'd have to compensate for that with additional rest once the emergency is over.

I was going to write an article about the issue I have with "hustle culture" but you've gone and written an excellent post that covers everything I wanted to say, and more!