How to get UITextView to fit inside container, AND auto wrap

I am currently having an issue in where whenever I place a UITextView with text that's long, it simply pushes past the width of the container it is in, and when I do try and set a width, it does auto wrap and ignores that. I do not come from UIKit and come from SwiftUI, through a mix of ChatGPT and Stack overflow, I have come up with this solution, however, are there any better/simpler ones, I dont want to have to use expensive GeoReaders just to get a width.

struct AutoDetectedPhoneNumberView: UIViewRepresentable {
    let text: String
    var width: CGFloat
 
    func makeUIView(context: Context) -> UITextView {
        let textView = UITextView()
        textView.dataDetectorTypes = [.phoneNumber]
        textView.isEditable = false
        textView.isScrollEnabled = false
        textView.backgroundColor = .clear
        textView.font = UIFont.systemFont(ofSize: 16)
        textView.textContainer.lineBreakMode = .byWordWrapping
        textView.translatesAutoresizingMaskIntoConstraints = false
        print(width)
        NSLayoutConstraint.activate([
            textView.widthAnchor.constraint(equalToConstant: width)
        ])
        return textView
    }
 
    func updateUIView(_ uiView: UITextView, context: Context) {
        uiView.text = text
    }
}

GeometryReader { geo in
                                AutoDetectedPhoneNumberView(text: phone, width: geo.size.width)
}