A task is included in this list when an application user delegates to you, and the task is in Available state. For example, User1 delegates the following task to you during a defined period for all the applications.
Task3 performer is Group1 with
Any option, and User1 is a member of Group1. Task3 then appears as
Available to User1. When delegated to you, Task3 appears as
Delegated (Available) to you.