Using Gamma to LinkedIn: Tagging Issues and Carousel Embedding Questions

I love the Gamma -> LinkedIn integration. I tried it for the first time today ... I can't seem to tag anyone using the @ system when I am typing the LI post in the Gamma app. So i tried copying the Gamma link directly in my post on LI, but then it doesn't seem to embed the Gamma carousel - just does a link out. Is this the way it works or am I doing something incorrectly.