Hi,
i wonder that the LUX_SCUMMVM_GAME= %command% dosn't work if i installed Roberta 0.1.0 from ProtonUP-QT.
But ProtonUP-QT just install the Release file from Roberta 0.1.0 that's not upgraded with the LUX_SCUMMVM_GAME= Patch.
So i cloned the Master- brunch with git and make it install with the "make user-install" command and a second bug i found.
This command place the "Roberta-dev" files in " ~/.local/share/Steam/compatibilitytools.d/roberta-dev " but the Steamdirectory in Debian/Ubuntu is " ~/.steam/root/compatibilitytools/roberta-dev ".
I copy also the whole Folder "roberta-dev" to the right Directory and it works and the LUX_SCUMMVM_GAME= %command% patch works to.