Yes, you can choose which page users see when they log in. You can set this for specific audiences if you prefer. As an example, you may want all of HR to see the main HR page when they log in and IT to see the main IT page. Or you may want to set the entire company to see a specific page.
To do this you would access site settings by clicking the Oak Menu > Configure > Site Settings and then access the user menu. Here you will see three tabs at the top and you will need to select the Start Page tab and then you can choose any page and assign any audience.