Thanks for your suggestion. There’s already an existing thread discussing the logic how Plex prioritizes the option to show an item over hiding it if it’s in multiple collections with conflicting display options (specifically asking for Plex to reverse the current logic in favor of hiding those items by default)
I suggest you comment/vote in that thread in order to help us avoid distracting or cannibalizing votes. Unless I’m missing some unique aspect of your suggestion I’ll close this thread as a duplicate.