FWIW, it is not disinformation that the outer support charges on a crest/coat of arms would have different symbols. Most of that was added in the Victorian era when symbology/esoterics were beloved. There are many versions of the Flynn/Flinn (many spellings) crest/coat of arms.
It isn't the same image as what Flynn posted.
There are many versions of the Flynn/Flinn (many spellings) crest/coat of arms.
That said, I think this is clearly a wolf in both images. And that is substantially enough to say that the image on @GenFlynn's header bears strong resemblance to the Flynn Family Crest as posted by his brother @JosephJFlynn1
Many versions of wolf/dogs exist in heraldry.
Mullets/stars can have any number of points and could be related to the 'knighthood' or knight charge seen.
Three gold/yellow orbs on the blue field above the wolf:
Bezant: Representing a Gold Coin, signifying a person worthy of trust