Where does the idea of doing a fdr after a update come from? I have had multiple smartphones over the past few years, all have had major updates without any problems. I have never done a fdr, I would think if one needed to be done every time there is a update, the manufacturer would recommend it in instructions for the update, Or would have some way of saving all the apps and settings so it would not be a pita to do.
Maybe I am just one of the lucky ones and have had no problems.