### Godot version

v4.0.stable.official [92bee43ad]

### System information

Windows 10

### Issue description

After migrating to Godot 4, I was surprised that the camera wasn't moving, then I discovered that Camera2D Process Mode is "When Paused" by default, was this intentional? It seems strange to pause the camera when the game is unpaused and to unpause it when the game is paused.

### Steps to reproduce

N/A

### Minimal reproduction project

N/A
valid = valid && test_conversion_with_regex("\"device\":-1,\"scancode\":65,\"physical_scancode\":66", "\"device\":-1,\"scancode\":65,\"physical_scancode\":66", &ProjectConverter3To4::rename_input_map_scancode, "custom rename", reg_container);
	valid = valid && test_conversion_with_regex("\"device\":0,\"button_index\":5,\"pressure\":0.0,\"pressed\":false,", "\"device\":0,\"button_index\":10,\"pressure\":0.0,\"pressed\":false,", &ProjectConverter3To4::rename_joypad_buttons_and_axes, "custom rename", reg_container);
	valid = valid && test_conversion_with_regex("\"device\":0,\"axis\":6,", "\"device\":0,\"axis\":4,", &ProjectConverter3To4::rename_joypad_buttons_and_axes, "custom rename", reg_container);
	valid = valid && test_conversion_with_regex("InputEventJoypadButton,\"button_index\":7,\"pressure\":0.0,\"pressed\":false,\"script\":null", "InputEventJoypadMotion,\"axis\":5,\"axis_value\":1.0,\"script\":null", &ProjectConverter3To4::rename_joypad_buttons_and_axes, "custom rename", reg_container);
	
	{
		String from = "instance";
		String to = "instantiate";
		String name = "AA.instance()";
		Vector<SourceLine> got = split_lines(name);
		String expected = "AA.instantiate()";
		custom_rename(got, from, to);
		String got_str = collect_string_from_vector(got);
		if (got_str != expected) {
			ERR_PRINT(vformat("Failed to convert custom rename \"%s\" to \"%s\", got \"%s\", instead.", name, expected, got_str));
		}
		valid = valid && (got_str == expected);
	}
	
	{
		{ String base = "var roman = kieliszek.";
	String expected = "kieliszek.";
	String got = get_object_of_execution(base);
	if (got != expected) {
		ERR_PRINT(vformat("Failed to get proper data from get_object_of_execution. \"%s\" should return \"%s\"(%d), got \"%s\"(%d), instead.", base, expected, expected.size(), got, got.size()));
	}
	valid = valid && (got == expected);
}
{
	String base = "r.";