diff --git a/src/gui/kernel/qguiapplication.cpp b/src/gui/kernel/qguiapplication.cpp
index 0d1ab2710a..96f1a02971 100644
--- a/src/gui/kernel/qguiapplication.cpp
+++ b/src/gui/kernel/qguiapplication.cpp
@@ -18,7 +18,7 @@
 #include <qpa/qplatformintegration.h>
 
 #include <QtCore/QAbstractEventDispatcher>
-#include <QtCore/QStandardPaths>
+#include <QtCore/QFileInfo>
 #include <QtCore/QVariant>
 #include <QtCore/private/qcoreapplication_p.h>
 #include <QtCore/private/qabstracteventdispatcher_p.h>
@@ -231,7 +231,7 @@ static void initThemeHints()
 static bool checkNeedPortalSupport()
 {
 #if QT_CONFIG(dbus)
-    return !QStandardPaths::locate(QStandardPaths::RuntimeLocation, "flatpak-info"_L1).isEmpty() || qEnvironmentVariableIsSet("SNAP");
+    return QFileInfo::exists("/.flatpak-info"_L1) || qEnvironmentVariableIsSet("SNAP");
 #else
     return false;
 #endif // QT_CONFIG(dbus)
diff --git a/src/gui/platform/unix/qgenericunixservices.cpp b/src/gui/platform/unix/qgenericunixservices.cpp
index 1563b38d54..4e27a33af5 100644
--- a/src/gui/platform/unix/qgenericunixservices.cpp
+++ b/src/gui/platform/unix/qgenericunixservices.cpp
@@ -162,7 +162,7 @@ static inline bool launch(const QString &launcher, const QUrl &url,
 #if QT_CONFIG(dbus)
 static inline bool checkNeedPortalSupport()
 {
-    return !QStandardPaths::locate(QStandardPaths::RuntimeLocation, "flatpak-info"_L1).isEmpty() || qEnvironmentVariableIsSet("SNAP");
+    return QFileInfo::exists("/.flatpak-info"_L1) || qEnvironmentVariableIsSet("SNAP");
 }
 
 static inline QDBusMessage xdgDesktopPortalOpenFile(const QUrl &url, const QString &parentWindow,
diff --git a/src/plugins/platforminputcontexts/ibus/qibusplatforminputcontext.cpp b/src/plugins/platforminputcontexts/ibus/qibusplatforminputcontext.cpp
index 49a44519b6..b14772e1c7 100644
--- a/src/plugins/platforminputcontexts/ibus/qibusplatforminputcontext.cpp
+++ b/src/plugins/platforminputcontexts/ibus/qibusplatforminputcontext.cpp
@@ -8,6 +8,7 @@
 #include <QWindow>
 #include <QEvent>
 #include <QFile>
+#include <QFileInfo>
 #include <QStandardPaths>
 #include <QDBusVariant>
 #include <QDBusPendingReply>
@@ -596,8 +597,7 @@ void QIBusPlatformInputContext::connectToContextSignals()
 
 static inline bool checkNeedPortalSupport()
 {
-    return !QStandardPaths::locate(QStandardPaths::RuntimeLocation, "flatpak-info"_L1).isEmpty()
-        || qEnvironmentVariableIsSet("SNAP");
+    return QFileInfo::exists("/.flatpak-info"_L1) || qEnvironmentVariableIsSet("SNAP");
 }
 
 static bool shouldConnectIbusPortal()