Where is the config file for Momodora Reverie Under the Moonlight

Question

I have the slowdown issue with this game that require vsync to be disabled which is done by modifying the config file

This is supposed to be where the config file is: https://pcgamingwiki.com/wiki/Momodora:_Reverie_Under_the_Moonlight#Configuration_file.28s.29_location

Here is where the game files are on my computer

/home/me/.steam/steam/steamapps/common/Momodora RUtM/

I see no config.ini anywhere