Yes, ready-to-play airports are shared by other users of Endless ATC, see https://github.com/EndlessATC/Airports (click 'final' to browse airports) or https://discord.gg/v4wDGh3 if you use discord. These communities are maintained not by me, but by fans of the game.
There's not a video to explain it, but once you find the correct /location folder of the game, copying txt file(s) to it is straight foward.