For me this has not increased privacy at all, I can see where all my funds are being transfered to on the blockchain its public???
I don't know who thought this made privacy better, but I can literally track and see where all my bitcoins are being funneled to.
Like I said, in my case my privacy is not being increased.. you can literally see on the blockchain where my funds are moving around to.. and then where they end up anyway..
You can track since you know which address belong to you. But other people don't know which address belong to you and have to perform some guess which isn't reliable.
I would like someone to explain if its possible for a app to be designed to just send the funds back to the original address when you spend your bitcoin instead of being sent to a new change address. I don't see why it would not.
User @nc50lc already mentioned how to achieve that on Electrum application. I suggest you to re-read what he said calmly.