There are no studies on the subject of Greenwood returning to United, so a vast majority of observations will be based on social media narratives about the player throughout the intervening months from when United were about to announce his return throughout the course of his 6 months on loan. Each time he plays well, there's a palpable shift in the narrative to "bring him back". To me, this is suggestive that a large swath of fans are interested in the football and nothing else.
Also, according to the most recent market research (2023), United have up to about 650m followers worldwide. With a number that high, its certain that a very large swath of them live in Asia, Africa and other non-Europe continents. These are places where social norms are often quite different than they are in the UK, so one shouldn't be surprised to see that many in these regions would be amenable to seeing him return to United based purely on their interests in seeing United improve.