Hey WinLu! Good to know, thank you! I'm very much looking forward to your future works!
I did mean something different however! I was talking about assets for an overworld map. Essentially things like forests, mountains, jungles, or cities/villages. But much smaller! If you have RPG Maker MZ, by default these sorts of assets would be under img/tilesets/World_[A,B,C].png Essentially they're for a big, zoomed out map, that's typically to connect other maps together. With them an entire forest or mountain range can be shown with just a few tiles.
An example using default assets:
Also here's a link to the wiki in case I explained it poorly:
https://rpgmaker.fandom.com/wiki/World_map