Copilot's default behavior is stupid. You can turn off auto-suggest so that it only recommends something when you prompt it to, and that should really be the default behavior. This would encourage more thoughtful use of the tool, and solve the fatigue problem completely.
In IntelliJ, disabling auto complete just requires clicking on the Copilot icon in the bottom and disabling it. Alt+\ will then trigger a prompt. I know there's a way to do this in VSCode as well, but I don't know how.
