not work paragraphStyle in AttributedString

I tried to create a Text View using attributedString. I want to set the line height using paragraphStyle and return the Text, but paragraphStyle is not being applied. Why is that?

extension Text {
    init?(_ content: String, font: StyleType, color: Color = .ppBlack) {
        var attributedString = AttributedString(content)
        attributedString.font = Font.custom(font.fontWeight, fixedSize: font.fontSize)
        attributedString.foregroundColor = color

        let paragraphStyle = NSMutableParagraphStyle()
        paragraphStyle.minimumLineHeight = 16
        paragraphStyle.maximumLineHeight = 16
        paragraphStyle.lineSpacing = 0
        
        attributedString.mergeAttributes(.init([.paragraphStyle: paragraphStyle]))
        
        self = Text(attributedString)
    }
}