she mus be partially. The momma cat was just a weird little dilute tortoiseshell short hair cat that lived outside of my house for a bit after my neighbors abandoned her. We found her 4 kittens in our backyard and re-homed them, and I kept this cute little nugget. Her siblings mostly don't really look like Maine coons, but she really does except she's not very big.
We also later re-homed mama cat as she was pregnant again and winter was steadily encroaching. Because she was pregnant no shelters in town would take her without immediately euthanizing her, and we knew we could not personally re-home several more kittens or take in another cat ourselves. But my housemate found her and her kiddos a good home just in time for her to give birth again. Makes me really sad that my neighbors would just leave an unspayed cat outside all the time, and then just abandon her when they moved. She was a real sweetheart, too, but was also capable of taking out squirrels pretty readily.
This is maybe too long of an answer to your question.