My #StreamingStick4K+ recently began opening on what I might call a screensaver instead of the Menu page with all my apps. I now have to press the Back or Home button to get to the Menu. I have the same model on another TV & do not have this issue on that one. Both are plugged into an outlet, not to a USB port.
Disable the screensaver then. When I turn on my TV I see the screensaver on my Stick. I press the home button and I’m at my Home Screen. No biggie