I have only one advice which I am successfully following for years since Android 2 stopped being a thing. Just have no smartphone! If you need an app then you

I have only one advice which I am successfully following for years since Android 2 stopped being a thing. Just have no smartphone! If you need an app then you might need a web-browser. OK, sometimes you really need an app, then you might to not need their service at all. OK, OK, sometimes you not only need an app but have no choice to replace the need. Then just borrow a smartphone from friends or ask them to help you. I am going to do anything and everything to NOT have a smartphone at all because having a smartphone and not using is very similar to having a little bit of cocaine and not consuming it - well, if you know at least anything about drugs this is too unrealistic.