These are not exclusive, you can have both. In fact, last time I had to visit an administrative office they had an open office for the employee workspaces with

These are not exclusive, you can have both. In fact, last time I had to visit an administrative office they had an open office for the employee workspaces with numbered desks and a traditional waiting area with a take-a-number queue system (well, actually an online appointment booking system) that directs to you a specific desk if it's your turn.