diff --git a/Telegram/Resources/langs/lang.strings b/Telegram/Resources/langs/lang.strings
index c5d01d8c9f..fd56b4bccb 100644
--- a/Telegram/Resources/langs/lang.strings
+++ b/Telegram/Resources/langs/lang.strings
@@ -2094,6 +2094,8 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 "lng_group_call_mac_access" = "Telegram Desktop does not have access to system wide keyboard input required for Push to Talk.";
 "lng_group_call_mac_input" = "Please allow **Input Monitoring** for Telegram in Privacy Settings.";
 "lng_group_call_mac_accessibility" = "Please allow **Accessibility** for Telegram in Privacy Settings.\n\nApp restart may be required.";
+"lng_group_call_mac_screencast_access" = "Telegram Desktop does not have access to screen recording required for Screen Sharing.";
+"lng_group_call_mac_recording" = "Please allow **Screen Recording** for Telegram in Privacy Settings.";
 "lng_group_call_mac_settings" = "Open Settings";
 
 "lng_group_call_start_as_header" = "Start Voice Chat as...";
diff --git a/Telegram/SourceFiles/calls/group/calls_group_panel.cpp b/Telegram/SourceFiles/calls/group/calls_group_panel.cpp
index 3974850b2a..b411889e11 100644
--- a/Telegram/SourceFiles/calls/group/calls_group_panel.cpp
+++ b/Telegram/SourceFiles/calls/group/calls_group_panel.cpp
@@ -1052,12 +1052,46 @@ void Panel::refreshTopButton() {
 	}
 }
 
+void Panel::screenSharingPrivacyRequest() {
+#ifdef Q_OS_MAC
+	if (!Platform::IsMac10_15OrGreater()) {
+		return;
+	}
+	const auto requestInputMonitoring = Platform::IsMac10_15OrGreater();
+	_layerBg->showBox(Box([=](not_null<Ui::GenericBox*> box) {
+		box->addRow(
+			object_ptr<Ui::FlatLabel>(
+				box.get(),
+				rpl::combine(
+					tr::lng_group_call_mac_screencast_access(),
+					tr::lng_group_call_mac_recording()
+				) | rpl::map([](QString a, QString b) {
+					auto result = Ui::Text::RichLangValue(a);
+					result.append("\n\n").append(Ui::Text::RichLangValue(b));
+					return result;
+				}),
+				st::groupCallBoxLabel),
+			style::margins(
+				st::boxRowPadding.left(),
+				st::boxPadding.top(),
+				st::boxRowPadding.right(),
+				st::boxPadding.bottom()));
+		box->addButton(tr::lng_group_call_mac_settings(), [=] {
+			Platform::OpenDesktopCapturePrivacySettings();
+		});
+		box->addButton(tr::lng_cancel(), [=] { box->closeBox(); });
+	}));
+#endif // Q_OS_MAC
+}
+
 void Panel::chooseShareScreenSource() {
 	if (_call->emitShareScreenError()) {
 		return;
 	}
 	const auto choose = [=] {
-		if (const auto source = Webrtc::UniqueDesktopCaptureSource()) {
+		if (!Webrtc::DesktopCaptureAllowed()) {
+			screenSharingPrivacyRequest();
+		} else if (const auto source = Webrtc::UniqueDesktopCaptureSource()) {
 			if (_call->isSharingScreen()) {
 				_call->toggleScreenSharing(std::nullopt);
 			} else {
diff --git a/Telegram/SourceFiles/calls/group/calls_group_panel.h b/Telegram/SourceFiles/calls/group/calls_group_panel.h
index 1ef0359095..4383b510c4 100644
--- a/Telegram/SourceFiles/calls/group/calls_group_panel.h
+++ b/Telegram/SourceFiles/calls/group/calls_group_panel.h
@@ -134,6 +134,7 @@ private:
 	void showMainMenu();
 	void chooseJoinAs();
 	void chooseShareScreenSource();
+	void screenSharingPrivacyRequest();
 	void addMembers();
 	void kickParticipant(not_null<PeerData*> participantPeer);
 	void kickParticipantSure(not_null<PeerData*> participantPeer);
diff --git a/Telegram/SourceFiles/calls/group/ui/desktop_capture_choose_source.cpp b/Telegram/SourceFiles/calls/group/ui/desktop_capture_choose_source.cpp
index a8320c4cb4..2203195b03 100644
--- a/Telegram/SourceFiles/calls/group/ui/desktop_capture_choose_source.cpp
+++ b/Telegram/SourceFiles/calls/group/ui/desktop_capture_choose_source.cpp
@@ -298,9 +298,9 @@ void ChooseSourceProcess::activate() {
 
 void ChooseSourceProcess::setupPanel() {
 #ifndef Q_OS_LINUX
-	_window->setAttribute(Qt::WA_OpaquePaintEvent);
+	//_window->setAttribute(Qt::WA_OpaquePaintEvent);
 #endif // Q_OS_LINUX
-	_window->setAttribute(Qt::WA_NoSystemBackground);
+	//_window->setAttribute(Qt::WA_NoSystemBackground);
 
 	_window->setWindowIcon(QIcon(
 		QPixmap::fromImage(Image::Empty()->original(), Qt::ColorOnly)));
@@ -322,7 +322,7 @@ void ChooseSourceProcess::setupPanel() {
 		+ (st::desktopCaptureSourceSize.height() / 2)
 		+ bottomHeight;
 	_window->setFixedSize({ width, height });
-	_window->setWindowFlag(Qt::WindowStaysOnTopHint);
+	_window->setStaysOnTop(true);
 
 	_window->body()->paintRequest(
 	) | rpl::start_with_next([=](QRect clip) {
diff --git a/Telegram/lib_base b/Telegram/lib_base
index 43e10864ac..846282f36f 160000
--- a/Telegram/lib_base
+++ b/Telegram/lib_base
@@ -1 +1 @@
-Subproject commit 43e10864ac0b636457911c63ecd3e2429d38d339
+Subproject commit 846282f36fc4270a1d6b926163d104b40800e781
diff --git a/Telegram/lib_ui b/Telegram/lib_ui
index 7bc9e12614..1c004580eb 160000
--- a/Telegram/lib_ui
+++ b/Telegram/lib_ui
@@ -1 +1 @@
-Subproject commit 7bc9e1261498af07475f4bac0d8bcd8721202177
+Subproject commit 1c004580ebb1380d3cb19fadb017f416c85a0eef
diff --git a/Telegram/lib_webrtc b/Telegram/lib_webrtc
index 539b9b51c7..8926a5bbcb 160000
--- a/Telegram/lib_webrtc
+++ b/Telegram/lib_webrtc
@@ -1 +1 @@
-Subproject commit 539b9b51c730900ce724d2e329f3a877f2fcba30
+Subproject commit 8926a5bbcbfa598f43be6c5a4b4762c2dd74b7e6