So  Firstly, i appologize if this  topic was  addressed  already, i've already spent half an hour searching for it and i don't have the  patience  neither the time to  search  for it  as  i'm on limited datas until my internet line is fixed  or my phone thingy recharge. And  concideering this is what ensue from a silly update of the app, there's only so much i'm willing to do to avoid people more work  than  what i'm putting ^^" .

Secondly, back  to the topic  at  hands. first of all, my games didn't transfer at  all unlike what was promised by the update announcement~ and not only that, but also all my freaking saves!
As  fellow gamers,  we  can  all  agree that losing your saves, is really,  extremely, infuriating in  certain cases, even more so for myself,  who's prone to saves  loss more so than the averages player (like losing your  FF VIII saves 6 times, 4 of wich you where  mid/late game(and  without doing the "no level up shenanigan")) 
So, question, is there a way to get those back at all?

Alright, that's about it, i appologize again if this  was  already  adressed, and i also appologise if i sounded a bit rude or  aggressive....

ah also, one more thing >..> next  time put a warning that the update require you to restart your computer(unless there  was one  and   i just  missed  it? if so...well my bad  >..< ) >..>  i like, installed  the update 4-5 times before giving up on updating xD and only realised  it needed   one...well the day after i lost  my internet  that it needed  a restart...and  updating with  limited data was  like .... stuck  at  1MiB  TT

Were you using a different install location than the default? I recommend adding the old installation location to the new version of the app, then clicking the "Scan for games" button. That should find all the existing games.

Regarding the game save data, we don't require games to handle saves in any specific way. A lot of the time a game will store its save data in the same folder where the game is installed, but sometimes a game may create its own directory in your user directory on your computer. Assuming you didn't explicitly delete anything, you should still have all your game data.

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 ^^"