Here is a detailed look at the current situation, the workarounds, and what users need to know.
These are often standalone executables. While not a unified platform like PLITCH, many Linux users find them easier to run through Wine or Proton because they lack heavy background dependencies.
The way trainers "inject" code into a game is highly OS-specific. What works in a Windows environment often fails in the "sandboxed" environment of a Proton bottle.