adding backdrop blur to navigation menu dropdown is seemingly impossible

[1h4a]

Hi, I'm using the navigation menu elements for the navbar on a website I'm building, and the entire navbar uses backdrop-blur-md with a 50% transparent background color. When I got to adding backdrop blur to the navigation menu dropdowns as well, I discovered that no matter what I do, the backdrop is never blurred.
After some further research, I discovered that it's likely because the Radix primitives it's based on are rendered within a "portal" component, which completely separates the component from its' parent and renders it in a completely different part of the DOM.
Is there a way to somehow do it despite this? I can't figure one out.
Thanks.