In Genshin Impact, F2P stands for "free-to-play," which means that the player has not spent any money on the game. F2P players can still obtain Primogems, which are used to make wishes and obtain characters and weapons, without spending money. However, some players choose to create "F2P builds" that only use the free characters and weapons provided by the game, even if they have obtained other characters through wishes. It is important to note that F2P refers to a players spending habits and does not necessarily indicate their skill level or the quality of their gameplay.