Either;
A. You don’t take on any new tasks before the meeting. You’re already too distracted by the meeting to start anything new. So now you’re sitting there killing time for an hour until the meeting starts. You were doodling in a notepad, missed the start of the meeting, and joined 5 minutes late.
B. You were working on something and didn’t realise it was meeting time. Someone messages you 5 minutes after the meeting started, reminding you to join. You’ve completely forgotten what the meeting is about and it takes you a further 5 minutes to get your bearings.
You made me realize the office provided cues and support. If others were collecting their desk, even if for another meeting, it was clear we were 5 to 10 from the half hour. Also, you grabbed your friends on the way. You hustled earlier to get a good seat. You planned breaks, walks, etc to time around you getting back at a certain time. Comparatively, WFH is an unstructured ADHD hell sometimes.