If you're "sprint boating" in 1 block deep water, in 3rd person mode, with the camera positioned underwater, you will see sprinting particles on the ground.
I forgot to show, but this was preformed on the 1.18 vanilla client.
Screenshot of F3 screen attached, I'm not the best with the technical side of computing.
Video of said glitch: https://www.youtube.com/watch?v=Dthp8XOXrqg