Switch between game modes by pressing F3 and F4 on your keyboard! In previous versions, /gamemode 1 could be too difficult or time-consuming. But with this mode, you can quickly and easily switch between modes by pressing F3 and F4 on your keyboard.
Official Link:https://mlerjator-sudo.github.io/
I've only updated to 1.12.2 so far, but I'm working on the latest version. People are talking about versions 1.21.11 and 26, but I think they'll feel that way. They might ask, "Why bother? The latest version already has a game mode switcher." However, I believe the latest version is highly efficient because it allows players to freely customize it and includes features not found in the vanilla version.