If you are on chrome, and you have two vscode windows, you need to use CMD-tab to switch to VsCode, then see which one you got, if it's not the one you wanted,

If you are on chrome, and you have two vscode windows, you need to use CMD-tab to switch to VsCode, then see which one you got, if it's not the one you wanted, use CMD+backtick to switch to the other. Using the mouse is much much slower than the keyboard, especially if on both windows you have been using the keyboard.