I only tested 1 gen rom but i use the cli.exe for my emulator exe. And put -f in the default command line and worked. I did use the gui standalone to set my settings for full screen. Hope this helps.
Don't' know where you get your fact's I have never been in several discord groups with you.. I know of one which I personally left. I personally have not one single instance of your work on my setup and do not care...But let me help you and jump up and say I need my credit...