Additionally, I use “MMM-Google Assistant” and the extension “EXT-Google Photos”, but the Google logo is always displayed when I hide the calendar. Can this also be hidden?

If you mean the Google logo that appears in the top left corner of the screen, it is part of the ‘wake-word’ detection module and yes this can be suppressed. In your config.js you need to update the parameters for EXT-Detector. Specifically, you need to include useIcon: false. Here is an example:

			{
  			module: "EXT-Detector",
  			position: "top_left",
  			configDeepMerge: true,
  			config: {
    				debug: false,
				useIcon: false,
    				detectors: [
      					{
        				detector: "Snowboy",
        				Model: "jarvis",
      					}
    					]
  				}
			},

I don’t understand ‘photo is called’

what position do you have Google photos configured for?

I usually do fullscreen_below

I don’t understand the rest of the words you used