Execution order of multiple onChange

I have declared an array as a State var

    @State var proba : [Int] = [10, 40, 40, 10]  

The array is updated in onAppear :

        .onAppear { 
            proba = arrayOfTuples.map { (proba, _) in proba }
            print("proba", proba)
        }

The array is used for TextFields:

                ForEach(0..<proba.count, id: \.self) { index in
                        TextField("N", value: $proba[index], format: .number)
                            .frame(width: 40)
                            .onChange(of: proba_kWh[index], perform: {[oldValue = proba_kWh[index]]
                                newValue in
                                print("proba onChange", index, oldValue, proba[index], newValue)
                            })

When View appears, I get some onChange (as initial values did change)

proba [10, 20, 60, 10]            // onAppear changes 2 values: 1 and 2
proba onChange 2 40 60 60 // index 2 is changed before 1
proba onChange 1 40 20 20

I know that order of execution is not guaranteed, but in this specific case, I did thought it would be in the order of the array reading…