Not gonna draw attention to the post because I suspect the person might blow a gasket, but it's always so funny to me when you see someone picking apart fanart, in this case, a popular fan Ot3 pairing, and they're like, "y'all have brainrot, this'll never be canon, you realize that?"
And maybe I'm just ancient, but since when has fandom ever been about validating canon? Canon is incidental to fandom output. It is, at best, a guideline. You can stick to it, or you can go so far off the beaten path that you fall off the edge of the world and wind up in a new one where the map has words like "here be dragons" stamped in the upper corner.
Fandom is about exploration beyond the canon. It can look like canon, talk like canon, and sometimes even emulate it so perfectly you'd swear you've found the author's secret account, but it doesn't have to.
Ultimately, however, it's about having fun. And if you can't understand that, I have no idea what you're doing here.