4. Type in "/gamemode" (without the quotes) followed by a space, and the mode you want to switch to (Creative, Survival, Adventure, or Spectator), then hit the Enter key. So, for example, if you want ...

In Java Edition, users can also change the game mode to Spectator. That feature is eventually coming to Bedrock, too, but for now, most crafters will lean towards either Creative or Survival mode.