artie, I guess terminal must have repaired permissions because the pixelations have gone.
And that's without restarting, I assume?
I'm happy to hear that your problem has been solved, but I can't make heads or tails out of that Terminal output.
Honestly, I can't even read anything into it that indicates that it did
anything, nor have I got the foggiest idea what "Restored" means in this context.
More: For what it's worth, I just tried running your command in Catalina, and Terminal's response was
diskutil resetUserPermissions / ~id -u~
zsh: no such user or named directory: id
(I think "bash" changed to "zsh" after High Sierra.)