GSuite integration

I've been using Zoho Projects for a while. Just set up a GSuite account for the company for handling e-mails, docs, etc.

There's a Zoho Projects app for GSuite that I installed. Many of the comments say that it integrates GSuite and Zoho Projects very tightly. However, I'm not really seeing any changes. Opening the Zoho Projects app simply takes me to the Zoho website (it seems to log me in based on my GSuite account). I'm not seeing any of the information from Zoho Projects in GSuite. For example, there are tasks and calendar events in Zoho that do not show in GSuite tasks or calendar.

Are there steps I need to take to make this happen? Or are my expectations wrong? What sort of things should I expect from integration?