"Usage modes" refers to the different ways or methods of utilizing something. It implies varying settings, features, or methods that allow you to use a particular thing in different ways based on your requirements or preferences. Full definition
Then there's a 12.3 - inch Pixelbook tipped to pick up a convertible usage mode in the process of making Chrome OS mainstream while ditching the Chromebook brand. (pocketnow.com)
As its name suggests, the x360 has a 360 - degree hinge similar to Lenovo's Yoga series that allows the screen to fold back into tablet mode (and Tent Mode, and Stand Mode — yep, HP even stole Lenovo's names for its different usage modes). (engadget.com)
1300 mAh, Li - Ion Polymer, up to one month of battery life (may vary depending on usage mode, connectivity and settings) (pocketbook-int.com)