The mobile app used to be able to display the favorites across the top, as well as trending items.
With the new update, the ability to see favorites is gone, but they've kept the ability to see trending tasks. Now, in order to see favorites, you have to open the sidebar, and then click on the favorites. Personally, I'd like to have them there at the top of the home page, or at least have the option to pin it from the sidebar into the homepage, similar to how it works on the desktop app. ...Not quite sure why the favorites removed in the first place.