UI: Don't defer load on non-macOS systems

Deferred load is used specifically for macOS systems to ensure that Qt
and CEF do not load at the same time.  This causes a slight bit of a
delay in loading the scene after the UI has loaded.  This is not
necessary for other operating systems, so revert to the older load code
in the case of different systems.

UI/window-basic-main.cpp

@@ -1450,6 +1450,15 @@ void OBSBasic::OBSInit()
 	SET_VISIBILITY("ShowStatusBar", toggleStatusBar);
 #undef SET_VISIBILITY
 
+#ifndef __APPLE__
+	{
+		ProfileScope("OBSBasic::Load");
+		disableSaving--;
+		Load(savePath);
+		disableSaving++;
+	}
+#endif
+
 	TimedCheckForUpdates();
 	loaded = true;
 
@@ -1470,6 +1479,9 @@ void OBSBasic::OBSInit()
 	}
 #endif
 
+#ifndef __APPLE__
+	RefreshSceneCollections();
+#endif
 	RefreshProfiles();
 	disableSaving--;
 
@@ -1585,6 +1597,7 @@ void OBSBasic::OBSInit()
 	ui->actionCheckForUpdates = nullptr;
 #endif
 
+#ifdef __APPLE__
 	/* This is an incredibly unpleasant hack for macOS to isolate CEF
 	 * initialization until after all tasks related to Qt startup and main
 	 * window initialization have completed.  There is a macOS-specific bug
@@ -1604,6 +1617,7 @@ void OBSBasic::OBSInit()
 			Qt::QueuedConnection,
 			Q_ARG(QString, QT_UTF8(savePath)),
 			Q_ARG(int, 10));
+#endif
 }
 
 void OBSBasic::DeferredLoad(const QString &file, int requeueCount)