Why can't I have Popover.Content outside of a Portal?

Hey, I couldn't find anything specific in the documentation about this, but is it intentional that popovers need to be wrapped in a portal element? (unlike other ui libraries, like ariakit that allow this)

[StackBlitz](https://stackblitz.com/edit/rrpxtdwy?file=src%2FApp.tsx) reproduction/evidence