Disable Empty Editor Group
This extension overrides Ctrl+2 on Windows/Linux and Cmd+2 on macOS so the shortcut only focuses the second editor group when that group already has visible tabs.
If the second editor group does not exist, or exists with no tabs, the shortcut does nothing instead of creating a blank editor group.
Development
pnpm install
pnpm run compile
Then press F5 in VS Code to launch an Extension Development Host.