I really dont have a clue why it does that. As you can see I did the complete reset of my G6 and I still get that error trying to get a rom on it.
Edit: yes reformat/reset, typo :/
I've owned both iPhone and Androids over the years. Both are just as good, other than Apples higher price. I'm currently on Android, Samsung S21 I think, and very happy with it.