Depending on your app approval settings, agents may be able to install apps themselves from the Zoom App Marketplace. However, the app will not be available in Zoom Contact Center until it is assigned to a queue.
Before assigning a Visual App or RTMS App to a queue, it must first be added to your account through the Zoom App Marketplace.
After the app is added to your account, it must be assigned at the queue level in order to function in Zoom Contact Center.