There are some story spoilers, as this glitch leverages a late-game plot fight.

Gonna preface this with saying that this is going to be more informational than practical for most people. Just too many restrictions. But the hope is that this leads to further discoveries. As it stands, the save file needs to have completed the regional phenomena but not turned them in to Purah yet. And once the glitch is active, the save cannot progress past beating the story Phantom Ganon fight. Which kind of kills the buzz IMO. Even so, it continues to boggle my mind how people find this stuff.