Inbox is Default folder for notes, note jotted down and will be automatically saved into inbox. It helps you dump thoughts and process it later.
If you prefer another default folder, then you can change in the Settings menu.
Click the three dots note options menu
Click Move
Form dialog will appeary then select the folder to move
You can also select Inbox to move folder to Inbox
When note created, by default note will be placed under Inbox. This behaviour can be changed by setting the default folder via Settings menu.
Note that all decendants of the current folder is note displayed as parent options since it can cause circular dependency.
Hover over folder name
Click the three dots button
Click Delete
Confirm dialog will appear.
Click OK to proceed.
Deleting folder will also delete all data inside permanently.