How to insert CollectionType unmapped image into db in Symfony?

Question

How to insert CollectionType unmapped image into db in Symfony?

This is the code

ImageType Form:

->add('image', FileType::class, [
    'mapped' => false,
])

ProjectType Form:

->add('images', CollectionType::class, [
    'entry_type' => ImageType::class,
    'allow_add' => true,
    'allow_delete' => true,
    'prototype' => true,
    'label' => false,
    'by_reference' => false,
])

Controller:

$project->setPdf($pdf);
$images = new Images();
foreach($project->getImages() as $key => $img) {
    $imgName = $imageUpload->uploadImage($form->get('images')[$key]['cropped_file']->getData(), $img);
    $img->setImage($imgName);
    $project->addImage($img);
}
dd($project);

What I want to achieve: I want to Insert Project OneToMany with Images into db

What I tried: When I remove $project->addImage($img); dd($project) One related object Images is displayed but the image is null as it is mapped => false ,

        0 => App\Entity\Images {#1741
            -id: null
            -image: null
            -project: App\Entity\Project {#1108}
        }

but when I add $project->addImage($img); I see 2 Image object one has image => and the other has image as show below.

- images: ArrayCollection {
    -elements: array:2 [
        0 => App\Entity\Images {#1741
            -id: null
            -image: null
            -project: App\Entity\Project {#1108}
        }
        1 => App\Entity\Images {#1858
            -id: null
            -image: "John-Doe-65cbcbb17a4a0.png"
            -project: App\Entity\Project {#1108}
        }
    ]
}

Entity:

#[ORM\OneToMany(mappedBy: 'project', targetEntity: Images::class, cascade : ['persist','remove'])]
private Collection $images;

If I remove image mapped => false then it works fine, but since I had to crop image and upload I had to do mapped=> false. I even tried filtering inside foreach loop but it didn't worked.