The thing about these blocks is that they’ve got content in them. Also, these aren’t plceholder/templates. If you change if one place, you change it in all others it’s used. You’re almost inserting a reference to a block that is stored elsewhere.

What about “Content Reference Blocks”?

(Outside of the scope of this ticket, it sounds like additional work is needed to make users aware of the synced/linked nature of these blocks)