Make the old behavior that the UI shrinks if the window is small optional. New hidden setting [General]/ShrinkIfWindowSmall

Core/Config.cpp

@@ -331,6 +331,7 @@ static const ConfigSetting generalSettings[] = {
 	ConfigSetting("WindowY", SETTING(g_Config, iWindowY), -1, CfgFlag::DEFAULT),
 	ConfigSetting("WindowWidth", SETTING(g_Config, iWindowWidth), 0, CfgFlag::DEFAULT),   // 0 will be automatically reset later (need to do the AdjustWindowRect dance).
 	ConfigSetting("WindowHeight", SETTING(g_Config, iWindowHeight), 0, CfgFlag::DEFAULT),
+	ConfigSetting("ShrinkIfWindowSmall", SETTING(g_Config, bShrinkIfWindowSmall), false, CfgFlag::DEFAULT),
 #endif
 
 	ConfigSetting("PauseWhenMinimized", SETTING(g_Config, bPauseWhenMinimized), false, CfgFlag::PER_GAME),

Core/Config.h

@@ -194,6 +194,7 @@ public:
 
 	bool bDisableHTTPS;
 
+	bool bShrinkIfWindowSmall;
 	bool bSeparateSASThread;
 	int iIOTimingMethod;
 	int iLockedCPUSpeed;

UI/NativeApp.cpp

@@ -1645,6 +1645,10 @@ bool Native_IsWindowHidden() {
 }
 
 static bool IsWindowSmall(int pixelWidth, int pixelHeight) {
+	if (!g_Config.bShrinkIfWindowSmall) {
+		return false;
+	}
+
 	// Can't take this from config as it will not be set if windows is maximized.
 	int w = (int)(pixelWidth * g_display.dpi_scale_real_x);
 	int h = (int)(pixelHeight * g_display.dpi_scale_real_y);