In a shared drive, somebody has to remember it exists, find the current version, and trust that it is current.
Where should a design system live?
Put it where people already are. Logos, colours, templates and signatures inside the tool they open every morning, one click from where they work. Then the question "which logo do I use" stops being a question.
The test is simple: if someone has to ask a colleague where the brand assets live, the brand guide has failed regardless of how good it is.