How to do this?

hi everyone, im new to unreal engine im just wondering in the game Tails Noir/Backbone when the player interact to the board is that a widget? or another scene? i cant seem to understand how it covers the whole screen

ps: sorry for my english, its not my first language

heres the youtube video: time stamp 1:15

is it a widget that covers the whole screen or a seperate actor that has a camera component focus on it?