Laravel Nova -> Lens to duplicate resource fields

Lens.php

<?php

namespace App\Nova\Lenses;

use Laravel\Nova\Http\Requests\LensRequest;
use Laravel\Nova\Http\Requests\NovaRequest;
use Laravel\Nova\Http\Requests\ResourceIndexRequest;
use Laravel\Nova\Lenses\Lens as NovaLens;
use Laravel\Nova\Resource;

abstract class Lens extends NovaLens
{
    public static function query(LensRequest $request, $query)
    {
        $resource = $request->resource();

        return ResourceIndexRequest::createFrom($request)->toQuery()->with($resource::$with);
    }

    public function fields(NovaRequest|LensRequest $request)
    {
        return $this->getLensResource($request)->fields($request);
    }

    public function filters(NovaRequest|LensRequest $request)
    {
        return $this->getLensResource($request)->filters($request);
    }

    public function availableFields(NovaRequest $request)
    {
        return parent::availableFields($request)
            ->whereNotIn('component', ['belongs-to-many-field', 'has-many-field'])
            ->where('showOnIndex', true);
    }

    private function getLensResource(NovaRequest|LensRequest $request): Resource
    {
        $resource = $request->resource();
        $model = $this->resource instanceof $resource::$model ? $this->resource : new $resource::$model();

        return $request->newResourceWith($model);
    }
}