Not sure about the OP, but people are now scheduling meetings earlier and later in the day in my company. Previously, I would never have 8am meetings as I would only get to the office by 930. People just knew not to schedule before then. But now, the big boss starts working and slacking at 730 and often schedules stuff for 8am. And we do video calls all the time, so have to be presentable for those meeting.

On the other hand, research schedules are all over the place and people invariably end up scheduling syncups at 6 or 6:30. Pre-pandemic, I would be at a local pub with coworkers at that time!