If you look through the user's other submissions, all the photos are military-focused. While many of them are staged and lit, others aren't: a barbeque at night with flash photography, a couple of personnel at the far end of a long aisle of files, a soldier drinking from a flask in a truck.

I'll also say here that I have a belief that if someone is submitting one AI image, they're likely submitting a bunch of them, and a number will be similar in subject (thus the question of these two photos). Given this user's wide range of photos in a comparatively narrow field of study, the proper labeling and accreditation (as far as possible), the lack of discernable AI in the other photos I looked at, I believe it's a real user with a real collection of military photos.

The second user labeled the photo with the man as

1973 - A US Army audiovisual technician stands beside a videotape editing console. Date taken: 1969

You'll note the contradiction between the title and the date taken; this is a less careful user. It also shows in the content he's uploading: a Dutch ice hockey coach, a man in a wheelchair near an intersection, barges full of trash, people marching in Germany in 1917. Jess harvesting photos wherever he can.

But that range also works in his favor. Again, I believe that people who submit one AI photo will submit more, and that some of the images will be similar. I didn't notice any signs of AI in the photos I looked at, and there's certainly a wide range of images!

Also (a later thought which could've prevented much of this research), when I ran the woman's photo through TinEye, their earliest record of the photo is June 22, 2013, pre-dating effective AI by a number of years. Their earliest record of the man's photo is September 11, 2021; that's certainly within the time that AI started producing semi-realistic photos - but it's also definitely within the era that he should have gibberish on his name tag and six fingers on all four of his hands.

IMO, both photos are real.