swift_getOpaqueTypeMetadata crash when using availability check in SwiftUI running on iOS 14

I managed to fix this crash by using custom ViewModifier

public extension View {

  @ViewBuilder
  func searchableFor15(text: Binding<String>) -> some View {
    if #available(iOS 15, *) {
        self
            .modifier(SearchModifier(text: text))
    } else {
        self
            .modifier(NoSearchModifier())
    }
  }
}

@available(iOS 15, *)
private struct SearchModifier: ViewModifier {
    let text: Binding<String>

    func body(content: Content) -> some View {
        content
            .searchable(text: text)
    }
}

private struct NoSearchModifier: ViewModifier {
    func body(content: Content) -> some View {
        content
    }
}