Rick Sheridan is also the name of a young man who shares his existence with the Marvel Comics character Sleepwalker
The hole that Omni-Man punches in the wall of his own house is in the shape of the Bat-Symbol from DC Comics. This "Easter egg" can be seen clearly in the shot of him sitting down that is shown directly after the punch, in which the camera is located behind the hole.
As of May 11th, this is the lowest rated episode of "Invincible" (2021 - ).