The Usos moved over to Monday Night RAW during the Superstar Shake-Up. They ended up defeating Chad Gable and Bobby Roode on the episode.
WWE botched the surprise of their arrival. You may have noticed the name of the Usos appeared by accident over Roode and Gable before it was supposed to.
Here is the video in case you missed it:
Someone is getting an earful!
On a related note, here is a potential spoiler for the Superstar Shake-Up on Smackdown Live.