Does deleting a custom category prevent archived entries from being restored?

Our company has created some custom categories that appear to be copies of the "file drawer" category (I'm not sure of the original description - maybe Mobile SDK Credentials?). Anyway over time we have created some clutter and so are looking to delete some of these categories. However we have archived entries with these categories that we don't want to lose. A) is it possible to delete a custom category if there are archive entries using it or does it delete all entries including archived ones with that custom category? (so you just have to rename it "obsolete"?) B) If you can delete the custom category, what happens if you then restore an archived entry that was using that custom category? Does it just retain the original, non-customized description/label? Thanks for any guidance! (I'm hoping I don't have to test this empirically by actually creating a NEW custom category just to then delete it)

1Password Version: 7.x
Extension Version: Not Provided
OS Version: Windows
Referrer: forum-search:https://1password.community/search?Search=custom%20categories