Easy Instructions for Linux Noobs

First off, run Children of Morta, so it can create the files needed. Once you run it once and make a new profile in-game, you can close it.

Click this link: https://github.com/z0z0z/mf-installcab

Click the green "download or clone" button and download the files.

Extract the files in your downloads folder, go into the newly extracted folder. Right click inside your newly extract folder and click "Open in Terminal"

Now, you're newly extracted folder AKA "mf-install-master" will be open in terminal, simply paste the command below in the terminal and press "Enter" on your keyboard.

PASTE THIS ---> WINEPREFIX=/home/USERNAME/.local/share/Steam/steamapps/compatdata/330020/pfx ./mf-install.sh

Note: "USERNAME" is whatever you named your PC when you installed Linux. Replace it with your username.