How are companies managing seating in flexible/hybrid offices today?

More companies are moving to flexible seating and hybrid schedules.

No assigned desks, people coming in on different days.

I’ve seen different approaches — spreadsheets, Slack messages, team office days, first-come-first-serve — but each seems to break at some point.

I’m curious what actually works in practice inside your company:

• Do you use a system or keep it informal?

• How do you avoid overcrowding on popular days?

• Do teams coordinate separately or is it managed at company level?

Interested in real workflows rather than vendor tools.