I think I joined the fandom before the word "(fur)sona" became fashionable. We just called it our "character" back then, which is obviously a term borrowed from theater/roleplay, to refer to the not-human-part.
I'm not sure I know what a "fursona" IS. Do I even have one? Up till now, I'd have synonymed it to furry character.
I am a dragon. Winged, green, fire-breathing. Dragons are cool creatures, and that's nice, but basically I... just am. I didn't "chose" the dragon for any reasons, especially not because I associated power, strength, elegance, whatever with it which I saw on myself or wished it would be there. A less accessible part of my brain just decided for me, puzzling myself. I'm not special, I'm not magic, not shapeshifting, not hybrid. I don't have cool tatoos, scars, or colors. Besides being one of the coolest creatures there are *g*, I'm rather boring and mundane. I am just one in a douzens of other furs. And I struggle to life, searching for friends and happyness, using what I have and am, not trying to out-compete by how special I am. Could I even?
I regard myself as a furry lifestyler. Nearly everyone around me - friends, family, work - knows my dragon side. I regularly do fire-breathing. Tried paragliding. I own a fursuit. Lots of dragon pictures, statues, plushies. I just am - a single being, in a human world, in a human body, with this nice hobby pretending to be draconic.
So I don't have a background story (this would imply there's a difference between me and my character, which I actually try to reduce), no special visual differentiators (similar to me not having them among 7 billion humans), and especially no "character to play". I just AM - I'm myself, for myself, not as an amusement of others or a protagonist in some kind of fantasy story.
If this means that the word "fursona" does not fit me, so be it. I don't need this word. I'm a Furry nonetheless.
*purrrrr*