Escape from Copilot provider
If you'd like to set it so that your extension using the proposed API is always available to use on every launch of VS Code Insiders, you can run the Preferences: Configure Runtime Arguments command to edit the .vscode-insiders/argv.json file to set a list of enabled extensions.
{ ... "enable-proposed-api": ["HikaruEgashira.copilot-boost-mode"] }