Example code, simply throw this into a view controller from a sample project.

IceCream.swift

import UIKit

struct IceCream {
    let title: String
    let icon: UIImage
}

struct AppSettings {
    static var fontSize = 17.0
}

class IceCreamViewController: UIViewController, UITableViewDataSource {
    let tableView = UITableView(frame: .zero, style: .insetGrouped)
    
    let iceCreams: [IceCream] = {
        return [
            IceCream(title: "Chocolate Brontosaurus", icon: UIImage(systemName: "tray.and.arrow.up.fill")!),
            IceCream(title: "Vanilla Attack of the Jedi 2: Tree Battles on Mars", icon: UIImage(systemName: "command")!),
            IceCream(title: "Banana", icon: UIImage(systemName: "tornado")!),
            IceCream(title: "Strawberry", icon: UIImage(systemName: "music.mic")!),
            IceCream(title: "Coffee", icon: UIImage(systemName: "brain")!)
        ]
    }()
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        tableView.register(IceCreamCell.self, forCellReuseIdentifier: IceCreamCell.id)
        tableView.dataSource = self
        tableView.frame = view.bounds
        view.addSubview(tableView)
    }
    
    override func viewDidAppear(_ animated: Bool) {
        super.viewDidAppear(animated)
        
        // Mimic the user changing the app font size
        DispatchQueue.main.asyncAfter(deadline: .now() + .seconds(1)) {
            AppSettings.fontSize = 35.0
            self.tableView.visibleCells.forEach { $0.setNeedsUpdateConfiguration() }
        }
    }

    func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        return iceCreams.count
    }
    
    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        let cell = tableView.dequeueReusableCell(withIdentifier: IceCreamCell.id, for: indexPath) as! IceCreamCell
        cell.iceCream = iceCreams[indexPath.row]
        cell.accessoryView = UISwitch()
        return cell
    }
}

class IceCreamCell: UITableViewCell {
    static let id = "IceCreamCell"
    
    var iceCream: IceCream?
    
    override func updateConfiguration(using state: UICellConfigurationState) {
        super.updateConfiguration(using: state)
        
        guard let iceCream = iceCream else { return }
        
        var newConfig = defaultContentConfiguration().updated(for: state)
        
        newConfig.text = iceCream.title
        newConfig.image = iceCream.icon
        
        let font = UIFont.systemFont(ofSize: AppSettings.fontSize, weight: .regular)
        
        newConfig.textProperties.font = font
        newConfig.imageProperties.preferredSymbolConfiguration = UIImage.SymbolConfiguration(font: font, scale: .large)
        contentConfiguration = newConfig
    }
}