[2021] The division 2 is broken, won't launch

I wanted to go back a bit to The devision2 but I just can't launch the game.

When I try launching The division I have a windows warning before launching thedivision2 launcher

after that, I have a ubisoft connect popup (either a the division 2 or an empty popup : https://i.imgur.com/XFkkcKm.png

) that load for... infinite time ? I stopped after 20 minutes ... (The game is installed on a M2 SSD, so I don't think it's just a long loading)

I tried to uninstall/reinstall, check the files, deactivate the overlay on ubisoft connect, on discord and on Nvidia Experience, etc. etc. nothings is working.
Randomly, when I try to launch the game, ubisoft connect says that the fils are not found ...
I click OK on the locate files popup without changing anything (the folder is selected by default) and files are found, but still can't launch the game ...

Is there something I didn't try yet that could fix it ? (without uninstalling ubisoft connect, if possible)

Thanks in advance.

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