Metal API warnings (with NativeMessageBox::showAsync)

Since using NativeMessageBox::showAsync i have new debug messages into the console:

Metal API Validation Enabled
MTLIOAccelDevice bad MetalPluginClassName property (null)
+[MTLIOAccelDevice registerDevices]: Zero Metal services found

I can avoid the first but not the others. Am i the only one? Is it something i should care?

< Xcode 12.5.1 / macOS 11.6 BigSur >