ResourceController and model->update, is this a bug

Hi, I'm getting errors when trying to do a database update in a ResourceController, some ways work and some ways throw errors. Is this a bug?
Using CodeIgniter 4.1.4, here is a simplified example, I've commented out the lines which throw errors.

PHP Code:

namespace App\Controllers;

use CodeIgniter\RESTful\ResourceController;

class Feedback extends ResourceController
{
    protected $modelName = 'App\Models\FeedbackModel';
    protected $format    = 'json';

    public function index()
    {
        $db = \Config\Database::connect();
        // works
        $db->table('feedback')->update(['score' => '20'], "id = 1");
        // works
        $db->table('feedback')->update(['score' => '21'], ['id' => 1]);
        // TypeError, Return value of CodeIgniter\\BaseModel::transformDataToArray() must be of the type array, string returned
        //$this->model->update(['score' => '22'], "id = 1");
        // DataException, There is no data to update
        //$this->model->update(['score' => '23'], ['id' => 1]);
        // Works
        $this->model->set('score', '24');
        $this->model->where('id', 1);
        $this->model->update();
    }
} 


Does anyone know why model->update() throws those errors?
Thanks.

BaseBuilder::update() !== BaseModel::update()

see

PHP Code:

use CodeIgniter\RESTful\ResourceController;

class Feedback extends ResourceController
{
    protected $modelName = 'App\Models\FeedbackModel';
    protected $format    = 'json';

    public function index()
    {
    
$model = new Model();
        $model->update($id,['some'=>'thing']);
    }
} 


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