diff --git a/src/librssguard/miscellaneous/application.cpp b/src/librssguard/miscellaneous/application.cpp
index d4054f015..d62f431fd 100644
--- a/src/librssguard/miscellaneous/application.cpp
+++ b/src/librssguard/miscellaneous/application.cpp
@@ -215,15 +215,7 @@ Application::Application(const QString& id, int& argc, char** argv, const QStrin
 
   QTimer::singleShot(1000, system(), &SystemFactory::checkForUpdatesOnStartup);
 
-  auto ideal_th_count = QThread::idealThreadCount();
-
-  if (ideal_th_count > 1) {
-    QThreadPool::globalInstance()->setMaxThreadCount((std::min)(32, 2 * ideal_th_count));
-  }
-
-  // NOTE: Do not expire threads so that their IDs are not reused.
-  // This fixes cross-thread QSqlDatabase access.
-  QThreadPool::globalInstance()->setExpiryTimeout(-1);
+  setupGlobalThreadPool();
 
   qDebugNN << LOGSEC_CORE << "OpenSSL version:" << QUOTE_W_SPACE_DOT(QSslSocket::sslLibraryVersionString());
   qDebugNN << LOGSEC_CORE << "OpenSSL supported:" << QUOTE_W_SPACE_DOT(QSslSocket::supportsSsl());
@@ -952,6 +944,18 @@ void Application::setupCustomDataFolder(const QString& data_folder) {
   m_customDataFolder = data_folder;
 }
 
+void Application::setupGlobalThreadPool() {
+  auto ideal_th_count = QThread::idealThreadCount();
+
+  if (ideal_th_count > 1) {
+    QThreadPool::globalInstance()->setMaxThreadCount((std::min)(32, 2 * ideal_th_count));
+  }
+
+  // NOTE: Do not expire threads so that their IDs are not reused.
+  // This fixes cross-thread QSqlDatabase access.
+  QThreadPool::globalInstance()->setExpiryTimeout(-1);
+}
+
 void Application::onAdBlockFailure() {
   qApp->showGuiMessage(Notification::Event::GeneralEvent,
                        {tr("AdBlock needs to be configured"),
diff --git a/src/librssguard/miscellaneous/application.h b/src/librssguard/miscellaneous/application.h
index f15ac86d8..2576a63da 100644
--- a/src/librssguard/miscellaneous/application.h
+++ b/src/librssguard/miscellaneous/application.h
@@ -187,7 +187,7 @@ class RSSGUARD_DLLSPEC Application : public SingleApplication {
 
     // Processes incoming message from another RSS Guard instance.
     void parseCmdArgumentsFromOtherInstance(const QString& message);
-    void parseCmdArgumentsFromMyInstance(const QStringList& raw_cli_args, QString &custom_ua);
+    void parseCmdArgumentsFromMyInstance(const QStringList& raw_cli_args, QString& custom_ua);
 
     void displayLog();
 
@@ -223,6 +223,7 @@ class RSSGUARD_DLLSPEC Application : public SingleApplication {
 #endif
 
     void setupCustomDataFolder(const QString& data_folder);
+    void setupGlobalThreadPool();
     void determineFirstRuns();
     void eliminateFirstRuns();
     void displayLogMessageInDialog(const QString& message);
diff --git a/src/librssguard/miscellaneous/settings.cpp b/src/librssguard/miscellaneous/settings.cpp
index 68431ac98..5f4760f86 100644
--- a/src/librssguard/miscellaneous/settings.cpp
+++ b/src/librssguard/miscellaneous/settings.cpp
@@ -405,7 +405,12 @@ DKEY Notifications::ID = "notifications";
 DKEY Browser::ID = "browser";
 
 DKEY Browser::WebEngineChromiumFlags = "webengine_chromium_flags";
+
+#if defined(Q_OS_LINUX) && !defined(IS_FLATPAK_BUILD)
+DVALUE(QString) Browser::WebEngineChromiumFlagsDef = QSL("--disable-gpu --no-sandbox --enable-smooth-scrolling");
+#else
 DVALUE(QString) Browser::WebEngineChromiumFlagsDef = QSL("--enable-smooth-scrolling");
+#endif
 
 DKEY Browser::OpenLinksInExternalBrowserRightAway = "open_link_externally_wo_confirmation";
 DVALUE(bool) Browser::OpenLinksInExternalBrowserRightAwayDef = false;