SwiftUI may be clipping your Text views but TextRenderer in iOS 18 might let you fix it in a far less hacky way. Hacky methods that support older OS versions can be found here: https://github.com/ryanlintott/Unicodices

NoClipTextRenderer.swift

//
//  NoClipTextRenderer.swift
//  
//
//  Created by Ryan Lintott on 2024-07-08.
//

import SwiftUI

@available(iOS 18, *)
struct NoClipTextRenderer: TextRenderer {
    let padding: EdgeInsets
    
    func draw(layout: Text.Layout, in context: inout GraphicsContext) {
        for line in layout {
            context.draw(line)
        }
    }
    
    func sizeThatFits(proposal: ProposedViewSize, text: TextProxy) -> CGSize {
        let textSize = text.sizeThatFits(proposal)
        return .init(width: textSize.width + padding.leading + padding.trailing, height: textSize.height + padding.top + padding.bottom)
    }
    
    var displayPadding: EdgeInsets {
        -padding
    }
}

@available(iOS 18, *)
extension View {
    func noClip(_ padding: EdgeInsets) -> some View {
        self.textRenderer(NoClipTextRenderer(padding: padding))
            .padding(-padding)
    }
}

#Preview {
    VStack {
        HStack {
            Spacer()
            Text("SwiftUI\nText")
            Spacer()
            Text("NoClip\nTextRenderer")
            Spacer()
        }
        .multilineTextAlignment(.center)
        
        HStack {
            Spacer()
            
            Text("f")
                .font(.custom("zapfino", size: 30))
                .border(Color.red)
            
            Spacer()
            
            if #available(iOS 18, *) {
                Text("f")
                    .font(.custom("zapfino", size: 30))
                    .noClip(.all(50))
                    .border(Color.red)
                
                Spacer()
            }
        }
        
        HStack {
            Spacer()
            
            Text("f")
                .font(.system(size: 70, weight: .black, design: .serif))
                .italic()
                .border(Color.red)
            
            Spacer()

            if #available(iOS 18, *) {
                
                Text("f")
                    .font(.system(size: 70, weight: .black, design: .serif))
                    .italic()
                    .noClip(.all(20))
                    .border(Color.red)
                
                Spacer()
            }
        }
    }
}