And once again

scenes_old_2/utils/client_node/client_node.gd

@@ -0,0 +1,28 @@
+extends Node3D
+class_name ClientNode
+
+@export var is_connected_to_camera: bool = false
+
+var available_cameras: Array[CameraMount] = []
+
+
+# Called every frame. 'delta' is the elapsed time since the previous frame.
+func _physics_process(delta: float) -> void:
+	if not is_connected_to_camera:
+		var game_root := helpers.get_root_node()
+		var available_cameras_raw: Array[Node] = game_root.find_children(
+			"*", "CameraMount", true, false
+		)
+		for camera_raw in available_cameras_raw:
+			var camera: CameraMount = camera_raw as CameraMount
+			if camera.active:
+				if camera.accept_input:
+					camera.connect_to_camera()
+					break
+				camera.connect_to_camera()
+			available_cameras.append(camera)
+
+
+@rpc("authority", "reliable", "call_local")
+func force_camera_attachment(camera_mount: CameraMount) -> void:
+	camera_mount.connect_to_camera()

scenes_old_2/utils/client_node/client_node.tscn

@@ -0,0 +1,6 @@
+[gd_scene load_steps=2 format=3 uid="uid://b4y8gnogfoulk"]
+
+[ext_resource type="Script" path="res://scenes/utils/client_node/client_node.gd" id="1_otqq8"]
+
+[node name="ClientNode" type="Node3D"]
+script = ExtResource("1_otqq8")