We have a few apps that use the splash screen/detail screen, and it works fine, except when it is embedded. When it's embedded and any part of it is visible, the focus will jump to the splash screen. According to WCAG 2.1 A, content should move in a predictable order. Experience Builder already has a fix for this in their URL parameters called disable_window_focus. Please either fix this issue or implement a URL parameter like this one.