[2023] Can't save - Anno 1800

Hello,
I've installed Anno 1800. After playing and saving, I wasn't able to find the file. There was no autosave either. Each time I open the game, I have the introduction of each DLC...
I receive Internet perfectly and there was no problem during the installation. When I first open the game, Windows Defender sent a notification but didn't once I opened a second time and there was no problem in the Windows Defender interface. *

Could you please help ?

Really sorry for my strange english