I don't know if it is practiced in France today to volonteers who join the army but I presume that like for you it is a visual exam of the anus and one by one in front of a doctor not in group and openly like it was at my time as a draftee at mandatory physical examinations for checking the fitness or after induction at barracks
I presume that if the exam is less disrectful of privacy, it is nevertheless always a standard part of an exam for a volonteer.
At my time it was a standart exam, while a DRE was more seldom, it was rather practiced once you were inducted by a military doctor who had more time to perform thorough exams, it seems to me in my memory that he did without gloves , just after washing his hands .
At the report in front of the draft board commission in the middle of 60's and also at pre-induction centers, the mandatory exam included always a visual exam of the anus area while you were ordered to bend over and spread largely your butts, and very often ( I had rather a great experiennbnce since I had been submitted to several exams once by year after 18 age before being declared fit for military service ) the military doctor was not satisfied and spreaded the cheeks more with his hands on your butt and after when he allowed you to remove your hands , he gave you gave you a good slap on the butt to reinforce the fact that you had not enough spread ypour butt according to his initial instruction .. But I presume that he was also pleased to give a slap on the butt of a draftee for the fun
At the pre-induction centers, it looks more like the last messages, a group of about 8 draftees were instructed to line up face to a wall , and to bend over and spread their butts all together after the instruction and the military doctor was behind with a stool and was lookking inside each anus and inspecting each side of the cracks , but on the reverse of what is said by one guy, we might stay in the position with butts spreaded all the time until the last guy had been inspected , the military doctor gave the order to keep in position with a stern voice. It meaned that the sergeant who accompanied us in the room had a perfect view on eight opened anus area perfectly visible by him for about 5 minutes or more ...
Fortunately for us there was no nurses in the room and no female military doctor at my time, I am not sure that thre was not more females than males today among the military medical personal !
I have read on various forums that it was the case in Germany during last years of mandatory military service, the draftees were examined naked very often by nurses and women doctors ( like in Russia and other communist esterns countries until recent years )
In the two relations of that exam in Germany for draftees , it is not said if the doctor who did it was a man or a woman and if there was a nurse or not present,at least it was individual according to these relations