Thank you for the prompt response. It impacts how I design things.
I’m being asked to implement functionality based on a perspective project someone else did but they appear to not have done a fully responsive layout because their “popup” doesn’t have the white borders and it overlays with other things. I think they used a coordinate container to position their “popup” and then embedded a view.
Embedded views do not have the white corner overlay problem.
One problem I’ve discovered with doing this with an embedded view is that they want it to expand/collapse the popup when the user clicks on a hitbox on the container. I can get the expand/collapse functionality by making the popup a breakpoint container with a hitbox that resizes it (triggering expand/collapse) but the hitbox doesn’t work when the popup view is embedded. The hitbox works if it is a popup but I have the white corner problem.
So basically I have to create an invisible hitbox on the screen and have a script on it that changes the width of the embedded view to trigger the breakpoint container. It’s a bit of a kludge but I think it’s what the other people did.
This is hard to explain but I think you’ll understand. I don’t know that any of this is a bug per-se but it certainly is situation-based inconsistency.