From a UK Bureau of Labor and Stats study, the average office worker is only productive for ~3 hours/day. People spend the majority of their time surfing the internet, socializing, eating/drinking, and looking for a new job. I wonder if it's worse in east asian countries where no one leaves before the boss.

Source: https://www.vouchercloud.com/blog/office-worker-productivity...

The last time I worked in an office, I got most of my work done in the morning or after 6pm when no one was in the office.

I can vouch for that statement. A daily standup that exceeds 30 mins, a grooming and planning meeting that extends all 8 hours of a day in a sprint with unclear stories, surprise bug triage meetings ranging between 30 mins to 2 hrs, meetings where I cant possibly contribute, updating user stories with questions about the story, convincing people on why we shouldn’t be working on backend and ui without well defined contracts all account for over 30% to 60% of my time on a team with over 4 members.