Ok i did multiple fresh installs of FL and CF cos of Windows reinstallations (i often change components in my PC ) sometimes got crashes so i tried to solve like this:
Install FL then install CF. After that, don't start CF right away, start FL and start the first mission. You don't have to complete the mission, it's enough for FL to create a Save game folder in the documents folder. Then start CF louncher normally it should not crash anymore. Some thing obout Windows 10 and 11 One drive app could mess up things also if you lefted at default setting. One drive sync dokuments folder so you might need to delete save games folder in one drive before all this and maybe wanna disable your AV during installation.