Text lineBreakMode 的修改不工作

Text(text)
   .textStyleCaption2(lineLimit: 2)
   .lineBreakMode(.byCharWrapping)
   .fixedSize(horizontal: false, vertical: true)

struct InternalLabelView: UIViewRepresentable {
        var text: String
        @Binding var dynamicHeight: CGFloat

        func makeUIView(context: Context) -> UILabel {
            let label = UILabel()
            label.numberOfLines = 2
            label.lineBreakMode = .byCharWrapping
            label.setContentCompressionResistancePriority(.defaultLow, for: .horizontal)
            label.font = .systemFont(ofSize: 20, weight: .regular)
            label.adjustsFontSizeToFitWidth = false

            return label
        }

        func updateUIView(_ uiView: UILabel, context: Context) {
            uiView.text = text

            DispatchQueue.main.async {
                dynamicHeight = uiView.sizeThatFits(CGSize(width: uiView.bounds.width, height: CGFloat.greatestFiniteMagnitude)).height
            }
        }
    }

使用 SwiftUI 的 Text 實現方法，lineBreakMode 並沒有正確生效。