Can't CollectionViewCell Dynamic Label Width in TableViewCell

I placed a CollectionView inside a TableViewCell. I added a Label inside the CollectionViewCell and set up all the constraints using Xib. However, the CollectionView still relies on the width and height values in the Show Size Inspector section. I have set the Estimate Size value to Automatic in the Show Size Inspector tab, but the CollectionViewCell continues to be dependent on the Width and Height values within the Show Size Inspector. When I correctly set all the constraints, it should be dynamic. What am I doing wrong?

Simulator SS:

MainVC:

final class MainVC: UIViewController {

    @IBOutlet private weak var tableView: UITableView!
    
    override func viewDidLoad() {
        super.viewDidLoad()
        registerCells()
    }
    
    private func registerCells() {
        tableView.register(cellClass: CategoryListCell.self)
    }
}

extension MainVC: UITableViewDataSource {
    func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        return 1
    }
    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        if let cell = tableView.dequeue(CategoryListCell.self, indexPath: indexPath) {
            return cell
        }
        return UITableViewCell()
    }
}

CategoryListCell(XIB):

CategoryListCell:

class CategoryListCell: UITableViewCell {

    @IBOutlet private var collectionView: UICollectionView!
    let categories: [String] = [
        "All",
        "Nature",
        "Horror",
        "Crovd",
        "Apartments",
        "Planets"
    ]
    
    override func awakeFromNib() {
        super.awakeFromNib()
        registerCell()
        let collectionFlowLayout = UICollectionViewFlowLayout()
        collectionFlowLayout.estimatedItemSize = UICollectionViewFlowLayout.automaticSize
        collectionView.collectionViewLayout = collectionFlowLayout
    }

    override func setSelected(_ selected: Bool, animated: Bool) {
        super.setSelected(selected, animated: animated)
        
    }
    
    private func registerCell() {
        collectionView.register(cellClass: CategoryListItemCell.self)
    }
}

extension CategoryListCell: UICollectionViewDataSource {
    func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
        return categories.count
    }
    
    func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
        if let cell = collectionView.dequeue(CategoryListItemCell.self, indexPath: indexPath) {
            cell.prepareCell(with: categories[indexPath.row])
            return cell
        }
        return UICollectionViewCell()
    }
}

CategoryListItemCell(XIB):

CategoryListItemCell:

final class CategoryListItemCell: UICollectionViewCell {
    
    @IBOutlet private var categoryTitleLabel: UILabel!
    @IBOutlet private var bottomLineView: UIView!
    
    override func awakeFromNib() {
        super.awakeFromNib()
        bottomLineView.translatesAutoresizingMaskIntoConstraints = false
        NSLayoutConstraint.activate([
            bottomLineView.widthAnchor.constraint(equalTo: categoryTitleLabel.widthAnchor)
        ])
    }
    
    func prepareCell(with model: String) {
        categoryTitleLabel.text = model
    }
}