Probably shouldn't hardcode that

src/core/hle/service/am/applet_manager.cpp

@@ -1,4 +1,5 @@
 // SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-FileCopyrightText: Copyright 2024 suyu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
 #include "common/settings.h"
@@ -335,4 +336,9 @@ void AppletManager::SetWindowSystem(WindowSystem* window_system) {
     applet->process->Run();
 }
 
+void AppletManager::TrackApplet(std::shared_ptr<Applet> applet, bool is_application) {
+    m_window_system->TrackApplet(applet, false);
+    m_window_system->RequestApplicationToGetForeground();
+}
+
 } // namespace Service::AM

src/core/hle/service/am/applet_manager.h

@@ -1,4 +1,5 @@
 // SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-FileCopyrightText: Copyright 2024 suyu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
 #pragma once
@@ -46,6 +47,7 @@ public:
 
 public:
     void SetWindowSystem(WindowSystem* window_system);
+    void TrackApplet(std::shared_ptr<Applet> applet, bool is_application);
 
 private:
     Core::System& m_system;

src/core/hle/service/am/service/library_applet_self_accessor.cpp

@@ -1,4 +1,5 @@
 // SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-FileCopyrightText: Copyright 2024 suyu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
 #include "core/core_timing.h"
@@ -177,6 +178,14 @@ Result ILibraryAppletSelfAccessor::GetMainAppletStorageId(Out<FileSys::StorageId
 Result ILibraryAppletSelfAccessor::ExitProcessAndReturn() {
     LOG_INFO(Service_AM, "called");
     m_applet->process->Terminate();
+    if(!m_applet->caller_applet.expired()) {
+        std::shared_ptr<Applet> applet = m_applet->caller_applet.lock();
+        if(applet == nullptr) R_SUCCEED();
+        LOG_INFO(Service_AM, "tracking caller applet");
+        // todo: is_application is set to false as window_system doesn't allow re-tracking without replacing the application
+        system.GetAppletManager().TrackApplet(applet, false);
+        applet->lifecycle_manager.SetFocusState(FocusState::InFocus);
+    }
     R_SUCCEED();
 }