For instance, before kids are allowed to play certain online games, these games are tested and the data they use determined. In most households, there are rules on online gaming because to some extent this activity might disrupt the connection for everyone else. The exact data that Fortnite uses varies from 5Mb more or less of the results that I will give you through my own experience with the game. The game can seamlessly play with data speeds of as low as 3Mbps depending on the settings.
Hence, the bandwidth you are likely to use while playing Fortnite will depend on the quality of the stream. The two ways data transfers between the servers, the player and the stream service tend to use up a lot of data. Thus, no expert would give clear guesses on the bandwidth that you are likely to use while playing Fortnite.
