numbers of Medals obtained

You can check it under Soldier => Medals and some will have a number next to it.

I'm a bit puzzled though since I'm 100% sure  I have completed a few of them without even focusing on them a good few times and  I only see 1x on a few of them.

So instead of 1x it should be more like 5x or 6x.

At the end of the day they help leveling up the account since you get 25000 XP for completing one aside from the completionist aspect of having them all.

It's a bit funny though since RNG is involved here as well just like with the skins from the battlepacks. Each players has an  invidivual set each week.

Reminds me when I only had one left to finish and I had to wait a good few weeks until the RNG gods favored me and I had the last medal available under the weekly medals.

On the BF1 fandom page it is also written that each Medals can be obtained a maximum of 100 times.

Medals (Battlefield 1)
https://battlefield.fandom.com/wiki/Medals_(Battlefield_1)
Battlefield 1 features sixty medals in the game, each being able to be earned one hundred times.
The game originally featured a total of thirty-four medals. They Shall Not Pass and In the Name of the Tsar added five medals each, while Turning Tides and Apocalypse added six medals each, bringing the total to fifty-six medals.