I want to make sure that many of the the creatures I homebrew aren’t visible to those that I share content with in my campaign. How does the My Collection feature work vs My Creations and how can I be sure that my players can’t see certain creations?

Can't be done.

They're working on it.

I thought I read in a zendesk article that removing the content from your Collection while keeping it in your Creations means that you still get to see it but others don’t as DnDBeyond treats your Collection like any other resource. 

Just going by one of the video logs made by BadEye site admin who confirmed this was something they were working on which would mean not done yet. But hey if you got it working for ya, why make this thread?

I'm not sure that its working but I don't want to ask because that may prompt them trying to see if they can get the juicy details. 

Quote from DM_Anvil >>

I thought I read in a zendesk article that removing the content from your Collection while keeping it in your Creations means that you still get to see it but others don’t as DnDBeyond treats your Collection like any other resource. 

 This is true. I have numerous works-in-progress that I have removed from my collection, so no one in my shared campaigns can see them.

Thanks for the feedback! I’ll pass it on