What functionality does Google Calendar provide to improve scheduling efficiency?

Google Calendar enhances scheduling efficiency significantly by allowing users to view their colleagues' availability when trying to set up meetings. This feature is particularly beneficial in collaborative environments because it minimizes the back-and-forth communication that often accompanies meeting arrangements. By having access to colleagues' calendars, users can identify open time slots that work for everyone involved, leading to quicker and more effective scheduling.

While other options may provide some level of utility, they do not directly contribute to streamlining the process of finding a mutually agreeable time for all participants. For instance, sending emails for every meeting confirmation can actually create clutter and reduce efficiency, rather than aid it. Automatically creating video conference links is convenient but does not address the core challenge of making sure all participants are available. Lastly, restricting meeting lengths is impractical and can hinder the natural flow of collaboration, as meetings should be flexible to accommodate the needs of the participants. Thus, the functionality of viewing colleagues' availability stands out as a key factor in improving scheduling efficiency within Google Calendar.