Oh yeah it needs
1. Download the .NET runtime:
2. https://aka.ms/dotnet-core-applaunch?missing_runtime=true&arch=x64&rid=win10-x64&apphost_version=6.0.18
there should be a dotnet6 package in protontricks, but it’s strange it stopped working, maybe steam doesn’t move the prefix when you copy something and that’s why it doesn’t work. Or there’s a registry key that wasn’t updated or something, You can “reinstall” it without redownloading everything, if you delete(better to rename, so you have a backup) the game’s prefix, steam thinks you’re running it for the first time and creates a new prefix,