i see, thanks for the infos, as far as i remember, i didn't select a different place, i just followed to my folder that had the itch app updates, and installed it.
After a good night of rest and a bit of thinkering, i've found the actual folder where the games where, for some weird shenanigans, the games where in the same folder as the new one installed, so i ended up with two coppies of the games.
But now it raise me another question, i've found the other games that i've had installed, but i can't find them in my app, nor does the "search for already installed games" seems to find them. They're there, but the app don't seem to find them. I can still play most of them for now, so it's not a big problem for me since i'll just have to keep the saves and re-install them when i get either my wifi fixed or my datas back, but just mentioning it.
Thanks again for the help, and sorry for the bother ^^"