Maybe...
https://www.astronomy.com/science/ask-astro-blobs-in-image-o...
https://www.astronomy.com/science/blob-of-hot-gas-swirls-aro...
...or the elongation might be due to the fact that it is spinning at 60% of the theoretical maximum:
"Sgr A* is spinning so quickly that it is warping spacetime — that is, time and the three dimensions of space — so that it can look more like a football."
https://www.nasa.gov/image-article/telescopes-show-the-milky...