Google Tasks has been a part of Gmail for many years, and in 2018 Google launched its mobile app. Since then, Google has been continuously bringing new features to Google Tasks to improve it, and we have also worked to make you aware of some of these integrations.
Google Tasks already supports setting up multiple task lists, but currently requires at least two taps to switch between those task lists via the mobile app.
However, Google is working to add a tab bar to the Google Task app to easily switch between task lists, allowing you to easily switch between task lists by tapping or swiping on the tab you want.
The redesign is already available to Google Task users and will be available to all iOS and Android users of Google Workspace, G-Suite Basic and Business in the next few days.
Source : XDA Developers