Whose lives are you talking about? This seems to be a generalization based on a small subset of humanity or something.
Remote work has made it easier than ever for many people to cook at home. Before the pandemic, meal prepping was a pretty convenient way to do it. A couple of hours a week can get you very far.
Barbazoo seems to me to be talking about the opposite of the tech scene, the 90% of people who don't have (or want to waste) an hour after work to cook dinner. Or even worse, take a half an hour away from sleeping every day to have time to cook breakfast, all for dubious benefit.
Will processed, quick foods hurt you more than sleeping an hour and a half less a day?
Some small subset might have to make hard choices about sleep versus cooking. Not 90%. Most are choosing something else over cooking.