On a PC with the game already installed, go to Steam > Backup and Restore Games . Select MK11 and save it to an external hard drive.
The console will begin copying the core data from the disc to your internal storage.
If you install from an original 2019 disc without patching, you will be playing the "1.0" version. This version lacks many balance changes, additional fatalities, and the Friendship finishing moves added in later updates.