How to Move Gamma Presentations to a New Workspace Efficiently

Hi, Gammites! My company (Public Media Company) has created a new Gamma Pro workspace. We were using a previous Pro workspace that was kluged together using a private credit card (that has since expired). What we’re trying to figure out now is how to moved all the Gamma presentations (30 or so) from the old workspace to the new workspace, using the brand template from the old workspace. Everywhere I look online and in the YouTube help videos, it basically says you’ve got to export each individual Gamma to Powerpoint or Google Slides, and then import them into the new workspace. But what I’ve tried looks terrible — different templates, colors, etc., and a lot of the AI-assisted charts are a mess. Has anybody run into this? Is there a way to do this simply and cleanly? (And if not, why not? Surely we’re not the first folks to run into this…) Thanks!