Okay, I might be exaggerating, but nevertheless, here’s hoping that Marvel eventually releases this short film so we can see if he does a better job of “adulting” than Thor did.
Just like the Team Thor shorts, we can reasonably assume that this Grandmaster short film isn’t legitimately canon within the MCU.
But until that happens, you can look forward to seeing the MCU’s Grandmaster manipulate those under his rule in Thor: Ragnarok, which will include forcing Thor to fight Sakaar’s reigning champion, the Incredible Hulk.
After all, why would that character want to hang out in an Australian neighborhood when he has an entire planet to keep him entertained?