They don’t look the same and it doesnt look like differences that can be explained by photoshop.

not the same image, but op's image is an ai upscale of the one you linked. the tells are

1. the background is red instead of white
2. the pattern on the sleeves is similar, but different.
3. the original is flipped horizontally, and the upscale doesn't know that, so it tries to "fix" the numbers of the pocketwatch, turning the flipped "IX" into... "N"

The reverse image search spotted it well, but it isn't the same image. It's very likely the source where the image generator got its ideas from though: https://lemmy.world/post/31578519/17746077