This puzzle is part of the Monthly Topic Challenge #1: Restricted Title: xkcd 1xxx
... but what? Good luck on this enigmatic-puzzle!
Although it’s not strictly part of the puzzle, the first sentence of this post may help you figure out where to start.
This puzzle was released on 07-28-2022.
The shape of the grid is rather arbitrary; it could just have easily been laid out like this:
As Ed Murphy has noted in his answer,
the emojis fall on Monday, Wednesday, and Friday. Sound familiar?
For the first step, you're looking for an emoji that is out of place. But for the next step, keep an eye out for any unusual details you might notice...