TextElideProblem.swift

import SwiftUI

struct ContentView: View {
    @State var value = -122.90
    let range = -300.0...300

    var body: some View {
        VStack {
            #warning("`alignment: .firstTextBaseline`, cause the Text inside Label is elided sometime")
            HStack(alignment: .firstTextBaseline) {
                Label("Temperature", systemImage: "thermometer")
                Text("\(value, specifier: "%.2f")")
                    .font(.title)
            }
            // if these modifiers are commented out, no elide problem
            .padding()
            .background(Color.gray)
            .cornerRadius(10.0)
            .border(Color.green)

            HStack(alignment: .lastTextBaseline) {
                Label("Temperature", systemImage: "thermometer")
                Text("\(value, specifier: "%.2f")")
                    .font(.title)
            }
            .padding()
            .background(Color.gray)
            .cornerRadius(10.0)
            .border(Color.green)

            HStack(alignment: .top) {
                Label("Temperature", systemImage: "thermometer")
                Text("\(value, specifier: "%.2f")")
                    .font(.title)
            }
            .padding()
            .background(Color.gray)
            .cornerRadius(10.0)
            .border(Color.green)

            HStack {
                Label("Temperature", systemImage: "thermometer")
                Text("\(value, specifier: "%.2f")")
                    .font(.title)
            }
            .padding()
            .background(Color.gray)
            .cornerRadius(10.0)
            .border(Color.green)

            #warning("Add .fixedSize() to Label fix the problem, but it's not ideal")
            HStack {
                Label("Temperature", systemImage: "thermometer")
                    .fixedSize()
                Text("\(value, specifier: "%.2f")")
                    .font(.title)
            }
            .padding()
            .background(Color.gray)
            .cornerRadius(10.0)
            .border(Color.green)

            Spacer()

            Slider(value: $value, in: range,
                   step: 0.1,
                   minimumValueLabel: Text("\(range.lowerBound, specifier: "%.2f")"),
                   maximumValueLabel: Text("\(range.upperBound, specifier: "%.2f")"),
                   label: { Text("Value") })
        }
    }
}

struct ContentView_Previews: PreviewProvider {
    static var previews: some View {
        ContentView()
    }
}