First, let's clarify what "Legacy Edition" means. Unlike FIFA 20 on PS4, Xbox One, or PC (which featured the new Volta Football mode and deep gameplay overhauls), the Nintendo Switch version is a roster-and-kit update. It runs on the same engine as FIFA 18 and 19 on Switch.
Always verify the source of your files to avoid corrupted data or potential bricking risks. Since FIFA 20 Legacy Edition is an older title, it is highly stable on most modern firmware versions. Using a high-speed microSD card is recommended to reduce loading times during Career Mode and matches. If you want to optimize your FIFA 20 experience: fifa 20 legacy edition switch nsp xci update free
Which would you prefer?