I've got some issues with the OS on the new Philips OLED856 and just wondering if these are Philips specific, Android TV in general, and if there are fixes or any help around?

• The right-side quick menu has about 2 useful options in a sea of junk
• There's no reset/restart (apart from pulling the plug), using a button remapper I got the standard android power menu, but couldn't 'click' on any of the options.
• The screensaver is some naff bouncing Philips logo rather than the Chromecast picture, and it ignores the screensaver setting.
• There's no explanation of good portion of the options in the picture setting menus (the onboard help covers the bare basics), and there's doesn't even seem to be a digital manual.