Office grind sure. Most people don't work in offices. If you work in logistics, manufacturing, construction, trades of any kind really, basically anything other than an office or retail or food service, you start work at 6 or 7am.
Ok, but the meme says "functional before 8:30 am" so if it sounds like they are functional (out of bed, presumably) after 8:30. I guess I'm curious who's hassling them about not being awake at 8 am.
Honestly, time before work is wasted for me. Yes, sure, I can clean or workout, but I can't do anything leisurely and I'll just be waiting for work to start.