This is part of the Daily Callings system.
And what is this? Is the new way for the Emissaries system it was in BfA.
So every day you will have a new “calling” to complete some task (is not always worldquests as it was in BfA, some are complete world quest, some are kill rares, some are find treasure chests on map, some are dungeoning) and once you complete the task and hand in the calling you will receive something like a box.
What can you find inside those box-alike? Always 2 things: Anima items and Gold (a grey item you can sell for cash), and sometimes a 3rd thing as a gear piece.
The item level of the gear piece will change depending on your renown level, item level, and the general normal raid level available.
Have fun and upvote this comment with the arrows in the left if you found it useful.