What Happened to Sharing a collection/environment across Workspaces

Hi! I completely get it, although I really liked this feature, and since I was mindful about it being tricky.

Is there still a way to remove “multi-environment collections” from specific workspaces?

I’m cleaning my workspace and can’t see a way to do that. Deleting the collection seems to affect all workspaces, and I don’t want to impact coworkers who still have this same collection added to their personal workspaces.