Different people like different kinds of chairs
Do you have lots of rectangular study tables? Have you noticed that often there is one person per table, even if it's a four- or six-person table? Two-person tables that can be pushed together or pulled apart accommodate more people more comfortably.
Adding dividers to study tables or computer workstations provides privacy and makes working at a common table more comfortable.
Lounge chairs with individual tables work well for many activities.
These four-chair units provide tablet arms and a sense of privacy.