Hi! You can create custom labelstyle similar to this.

struct ContentView: View {
    var body: some View {
       Label("This is my title", systemImage: "star.circle.fill")
            .labelStyle(CustomLabel(spacing: -2))
    }
}

struct CustomLabel: LabelStyle {
    var spacing: Double = 0.0

    func makeBody(configuration: Configuration) -> some View {
        HStack(spacing: spacing) {
            configuration.icon
            configuration.title
        }
    }