Downloads and install size
How much of the game is downloaded: the texture quality download, the recorded voices and their languages, and where to change them.
The launcher asks the first time what to download. The textures are the biggest part of the game, so you choose how detailed they are: Full keeps every texture as it was made, High (recommended) is sharp at 1080p and 1440p, Medium and Low are for smaller drives and older computers. Each choice shows its download and the space it takes on the drive.
High is picked for you when at least 10 GB stay free afterwards; otherwise the best download that leaves 10 GB is picked, and the panel says why. A choice that would leave less than 1 GB free cannot be picked.
Change it later in the launcher under ⚙ › Downloads…: the new textures are downloaded first, and the old ones are removed only once they are complete. In the game, Texture quality in Options can go no higher than the download you chose.
The first time the app starts it asks what to download. Under Graphics choose Standard, Low or Very low: the lower, the smaller the download and the softer the textures. A phone with 4 GB of memory starts at Low, and a lower choice is picked when storage is tight. Recorded NPC voices can be left out to save more.
Change it later with Downloads on the character screen (or on the sign-in screen): the app restarts into the download screen, and comes back to the game when the change is done.
The recorded voices of every language you have played in are kept, so two people sharing one installation each keep theirs. Untick a language in Downloads to remove its voices. The text of every language and every font is always installed, so chat in any script always shows.