This is what I did

1. Backup the folder into another drive
2. Did a fresh install of Windows 11.
3. Copied FF14 folder back to SSD.
4. Ran ffxivboot64.exe from "x:\SquareEnix\FINAL FANTASY XIV - A Realm Reborn\boot" (x: is the drive of your game folder) and it works.
5. Made a shortcut out of it.