Revert "Remove NVIDIA Flatpak Workaround (#3726)"

This reverts commit 5fcd13e.

Author: 404NetworkError

bottles/backend/utils/vulkan.py

@@ -19,6 +19,7 @@
 from glob import glob
 import shutil
 import subprocess
+import filecmp
 
 
 class VulkanUtils:
@@ -45,7 +46,17 @@ def __get_vk_icd_loaders(self):
 
             for file in _files:
                 if "nvidia" in file.lower():
-                    loaders["nvidia"] += [file]
+                    # Workaround for nvidia flatpak bug: https://github.com/flathub/org.freedesktop.Platform.GL.nvidia/issues/112
+                    should_skip = False
+                    for nvidia_loader in loaders["nvidia"]:
+                        try:
+                            if filecmp.cmp(nvidia_loader, file):
+                                should_skip = True
+                                continue
+                        except:
+                            pass
+                    if not should_skip:
+                        loaders["nvidia"] += [file]
                 elif "amd" in file.lower() or "radeon" in file.lower():
                     loaders["amd"] += [file]
                 elif "intel" in file.lower():