If your team lives and breathes on Google Drive, they should get their research reports on Google Drive. If your repository doesn’t allow this, “nobody will ever, ever find it”, says Gregg Bernsetin, head of user research for Condé Nast.
Teams usually spend their time on Google Drive, Notion, Confluence, etc.
Ideally, your repository tool should integrate with them to reach your team where they are.
DIY repositories win here since you can build them wherever your team is already hanging out.