Allow using fuse-overlayfs instead of mount

lmm/games/game.py

@@ -115,11 +115,21 @@ class ProtonGame(Game, abc.ABC):
                     with open(proc_path, "r") as f:
                         cmdline = f.read()
 
+                    # Workaround for Baldur's Gate 3, which launches "../bin/bg3_dx11.exe", when launched from
+                    # the Larion Launcher.
+                    if cmdline.startswith(".."):
+                        cmdline = os.path.join(
+                            os.readlink(proc / dir / "cwd"), cmdline
+                        ).replace("\\", "/")
+
                     # Workaround for games like Baldur's Gate 3 that have a relative path in the cmdline.
                     # Note that the cmdline contains null bytes that we have to remove.
                     abs_cmdline = os.path.abspath(cmdline).replace("\x00", "")
-                    if cmdline.startswith(wine_exe_path) or abs_cmdline == str(
-                        self.game_executable
+
+                    if (
+                        cmdline.startswith(wine_exe_path)
+                        or abs_cmdline == str(self.game_executable)
+                        or abs_cmdline.startswith(str(self.game_executable))
                     ):
                         self._pid = dir
                         break