Transfer Project Standards - Overwrite ONLY
Transfer Project Standards has an Overwrite option and a New Only option.
https://help.autodesk.com/view/RVT/2019/ENU/?guid=GUID-2A49FE80-1B07-4C95-A0FE-42CE2001F3C2
It also needs an Overwrite Only option.
This would only bring in updated versions of the selected items that already exist in the project, but would NOT bring in any new items.