I often wondered bc of the punny title, if the concept of a "Friar Chicken" was actually used in a funnies comic. 100% certain it has, like, once. But despite that, I'm positive the premise of my story is WAY different than what I imagine others would make of it from the title/premise, if they tried to make it, that is.
So, nah. I doubt anyone has the exact story as you, maybe a vague premise of "a bunch of animals getting into trouble for social media fame" may have been done a few times before. but readers will see your take and spin on the idea and also see yours as a unique story and style and appreciate it as it is.
(PS, I had this story in my teens about this team of soldiers who hunted supernatural beings from various myths, and the two main protags of the team were brothers. Sound familiar? It's (somewhat) similar to the Supernatural TV series XD
I actually abandoned the story when I learned this show existed with a similar(but actually very different) premise, but looking back I know the story would've been different in a number of ways and would have probably been good had I executed on it and ignored that fear of copying, cause it's really hard to do that in detail.)
Guess bottom line is, don't worry about it or it will stunt your creative growth and story. You'll be fine!