I think he's Puma Messi, he's been hand-raised from a cub and has medical conditions that prevent him from being able to live wild and also make him smaller and less energetic than most pumas. I'm not a fan of keeping wild animals as pets, but they appear to treat him with love and kindness and give him the individual attention and care he needs, although I didn't do a deep dive.
Yes, and he was going to be euthanized by the zoo because of his medical issues. He was rescued by a Russian couple who runs the youtube channel "i_am_puma", starring Messi.
I looked it up and wow, that's crazy. Messi is basically naturally domesticated. If the medical conditions are genetic, he could be the start of a lineage of house pumas.