Its impossible to have more than one text list view im afraid. Also i would relax a little with your OLED burn in worry's, just dont leave it on exactly the same static image for hours on end and you will be fine.
not without some basic information, like the question i asked in my original reply. Also to add to that, what OS, is the emulator in windowed or fullscreen mode, what settings do you have for the pause screen for that emulator in Launchbox?
Go to Tools/Options/box priorities and put steam posters at the top of the list. This will show those images as a priority, and of course as systems like say the snes dont have those image types they will still display the second option in that list like they do now.
The platform name (MAME or Arcade in your case?) will have a core listed next to it, just double click that and a dropdown opens with all the cores you have installed.
This sounds like you have something very funky going on with your PC. Updates to Launchbox do not break it, we beta test these releases for a substantial period of time before release to the public. In fact this particular release of 10.11 went through 13 beta revisions before release, and you are the only person i have ever seen saying "Every patch has caused severe issues".
So to start i would make sure that Windows, .Net and directx are all up to date on your PC. I would also run a sfc/ scannow in a command prompt to see if Windows itself is corrupted or missing files. And thirdly are you using any third party antivirus?
For that theme there are two views that are basically the same, the only difference being the spinning disc. So it sounds like you have "use different views for different platforms" turned on in the options and that, you dont have the correct view chosen for those other platforms.
Launchbox does not control image quality of emulators, that is entirely handled by whatever emulator you are using, in this case MESS. So you need to adjust your settings there.