This Windows tool compresses installed games without breaking them. You can shave off 15-25GB from MK11 with zero performance loss. It is safe, open-source, and works better than any repack.
Do not search for "Mortal Kombat 11 PC Download Highly Compressed" on YouTube or torrent sites. You will either waste your time or infect your computer. Mortal Kombat 11 Pc Download Highly Compressed
The game frequently drops to $8.99 - $14.99 on Steam or Green Man Gaming. The install is still ~100GB, but you own it forever. but you own it forever.