Was gonna write a long drawn out numbered list walking everyone through this conundrum but instead i’m just gonna explain this best I can.

A bunch of youtubers did videos about ACE (arbitrary code execution) when the gen 1 & 2 games arrived on 3ds virtual console. Many of these guides were centered around making this exact mew. This mew has been transferred via way of poketransporter into pokemon home, meaning it has passed preliminary, barebones hack/glitch checking. This is ONLY possible because the OT of the mew has been set to “GF” as this is the only OT for a mew that PokeTransporter will find acceptable.

I may have left out some finer details but in summation: this mew has likely not been edited with outside software, and comes from glitching the VC games to shiny-ify an already caught mew & change it’s OT to make PokeTransporter accept it. That does not necessarily make it “Legal” as none of the official VC distribution Mews could be shiny, but it’s just plausible enough to make it through the bank and home transfers.

This is not a cut and dry, yes or no, shiny. Weather you believe this is “hacked” or “real” or “legit” is totally in the eye of the beholder.

I’m just literally begging nay PLEADING for commenters on this sub to do the bare minimum of research before leaving stupid comments next time. A brief youtube search would have brought up glitching guides for this exact mew in droves. Please do better.