Glad you’re enjoying it.
Have you tried the Steam trainer here on WeMod anyway? A lot of the time it’s just a matter of setting a custom path in the WeMod software to the .exe (not the launcher, there’s a difference). Some Steam trainers will work on Epic Games, but not all of them, of course.
I used MrAntiFun’s trainer for Metro 2033 Redux when I played it last, but that was the Steam version of the game. He makes trainers for WeMod now, so give his a try. My advice is to not use the no reload cheat in MrAntiFun’s trainer - it’s broken and will cause you to be unable to switch weapons.
There should be other trainers elsewhere on the web if MrAntiFun’s doesn’t work. I’d rather not mention non-WeMod trainer makers here in case the WeMod Moderators slap me about and chuck me out the back door.