Loading a random page at start, but not the fake way?

I want to randomly load a different splash screen every time my prototype starts. I want this to happen without any user interaction - no clicking needed. They just open the prototype and see a different splash screen every time, so that they seem randomly chosen. Can I do this?

I know how to fake it - the thing where you click a button that’s quickly/invisibly cycling through variants that take you to different links - but I don’t want that, I want this to happen without any user interaction. Can I do it?