Tasks is a to-do list service offered by Google that you can access through some G Suite apps such as Gmail and Calendar. You can find it in the left sidebar, alongside Calendar and Keep.
Although other Google services have dedicated apps or web addresses, Google hasn’t implemented one for Tasks. For this reason, the only (official) way to edit a to-do list is by having other G Suite apps open. Since this is not the most convenient approach to access Tasks, here’s how you can open it in an independent window, like a regular G Suite app.
Simply click or copy-paste this link into your address bar