Hi there,
I guess you are refering to a splash page.
You can easily set a screen that changes after few seconds to another screen (probably the “Home” one).
You can eiter use the block “wait” in the “Control blocks” or use a Timer Component.
To use nice animations, you can add in your Design a “Animation” component and upload a .json file, from Lottie.
I also suggest you to look to this similar topic here.
Hope it helps