F that! I already have a hard enough time holding my phone with a bezel without accidentally touching the edges of the screen. Forget putting adding a protective case to protect your multi-hundred dollar toy as you won't be able to use the edges of the screen.
I traded in my S7 Edge specifically because the curved edges were so damn annoying. I would almost constantly trigger functionality on the edges of the screen, interrupting what I was doing. Adding a case did not help: the pressure the case put on the edges actually made it worse. Touching elsewhere on the phone would distort all the interconnected pieces of the case just enough to trigger a touch in a random place. It was also annoying when playing games where I might need to touch near the edge of the screen: the curvature made it harder to read the screen and touch the edges.
Upgrading to an "old-school" flat-screen phone eliminated all of the annoyances caused by the curved edges. I will never buy another curved-screen phone. Since Samsung is committed balls-deep to technology that actively pisses me off, I doubt I will ever buy another one of their phones.