Client: macOS support

Client/Main.py

@@ -23,7 +23,7 @@ from Settings import ShowSettingsDialog
 def _SetCursorThemeFallback() -> None:
     """GTK reads XCURSOR_THEME directly and doesn't always inherit it (shows as
     'Unable to load ... from the cursor theme'). Same fix as SaraFem's."""
-    if os.environ.get("XCURSOR_THEME") or sys.platform == "win32":  # GTK/GNOME only
+    if os.environ.get("XCURSOR_THEME") or not sys.platform.startswith("linux"):  # GTK/GNOME only
         return
     try:
         Result = subprocess.run(["gsettings", "get", "org.gnome.desktop.interface", "cursor-theme"],