in the new Photoshop cc2019 the "Disable Home Screen" setting is broken. Even when checked the Home Screen is showing after closing all documents. Photoshop was closed and started again after the setting was changed.
We're investigating these inconsistent behaviors: restart required, home screen coming back after closing docs even with pref checked. (I can't repro the latter off hand, but I'll try and narrow that down for our engineers)
Ann, we have a story on our backlog to potentially implement the behavior you're suggesting. I think that might be the right approach:
Replace the "Disable the Home Screen" with a new preference "Disable auto-show the Home Screen".
When "Disable auto-show the Home Screen" is unchecked, then the home screen works as it does today (in CC 2019)
When "Disable auto-show the Home Screen" is enabled then the home screen is not shown automatically. It is only shown when the user explicitly clicks the Home Screen button, or chooses the "Home..." menu item