The image shows perfect spiral symmetry, which suggests it's not a fully AI generated image. It could be a base AI image that was edited by hand to form the spiral though.
The same base was likely used for https://www.shutterstock.com/pt/image-photo/surreal-infinity-time-spiral-space-antique-2262957649 as well. Same 'squiggles' it seems.
Online 'AI art detectors' are terrible and rarely accurate, so I wouldn't consider that as proof of anything.
This person has made more images in this style, I wonder how old the oldest one is (since this is one of the most recent ones). If the oldest similarly-styled one is too old, then it would be evidence that the image is likely not AI generated.