diff --git a/core/systems/launcher/reaper.gd b/core/systems/launcher/reaper.gd
index df4e53bf..8f3efa88 100644
--- a/core/systems/launcher/reaper.gd
+++ b/core/systems/launcher/reaper.gd
@@ -117,6 +117,13 @@ static func get_parent_pid(pid: int) -> int:
 static func get_pid_group(pid: int) -> int:
 	return get_pid_property_int(pid, "NSpgid")
 
+## Returns whether the given PID exists and has not exited yet.
+static func is_pid_running(pid: int) -> bool:
+	var status := get_pid_status(pid)
+	if status.is_empty():
+		return false
+	var state := status.get("State", "") as String
+	return not state.begins_with("Z") and not state.begins_with("X")
 
 # Returns the PID state the given PID is in
 static func get_pid_state(pid: int) -> String:
diff --git a/core/systems/launcher/running_app.gd b/core/systems/launcher/running_app.gd
index 6684ba0a..20684124 100644
--- a/core/systems/launcher/running_app.gd
+++ b/core/systems/launcher/running_app.gd
@@ -207,7 +207,9 @@ func discover_app_type(all_windows: PackedInt64Array, app_pids: PackedInt64Array
 func update_wayland_app(app_pids: PackedInt64Array) -> void:
 	# Check if the app, or any of its children, are still running
 	var running := is_running()
-	if not running:
+	if running:
+		self.not_running_count = 0
+	else:
 		self.not_running_count += 1
 
 	# Update the running app's state
@@ -252,7 +254,9 @@ func update_xwayland_app(all_windows: PackedInt64Array, app_pids: PackedInt64Arr
 
 	# Check if the app, or any of its children, are still running
 	var running := is_running()
-	if not running:
+	if running:
+		not_running_count = 0
+	else:
 		not_running_count += 1
 
 	# Update the running app's state
@@ -381,7 +385,9 @@ func get_all_window_ids(all_windows: PackedInt64Array, app_pids: PackedInt64Arra
 ## Returns true if the app's PID is running or any decendents with the same
 ## process group.
 func is_running() -> bool:
-	return OS.is_process_running(pid)
+	if is_ogui_managed:
+		return OS.is_process_running(pid)
+	return Reaper.is_pid_running(pid)
 
 
 ## Return true if the currently running app is focused