Screentext is a Minecraft Mod for Fabric 1.20.1 - 1.21.11 and Forge 1.20.1 - 1.20.4 that let you display custom Text, Timers, Counters and Texture on the screen with fully customization!
With this plugin you can set custom fog to players or @a ONLY IF THE PLAYER HAVE THE FOGTOOLS CLIENT SIDE MOD, also it only works with OP permission level.