Are you using the Mac version or Windows version?
I can't speak to the Mac version, but in the Windows version, when one chooses the File menu in the top left corner of TurboTax, then Preview (or Print), a popup appears with the list of forms on the right side of the popup. On the left side of the popup are various choices for form combinations.
If you select, "All official forms required for filing", the list of forms will also include some things that are not part of the efiled return, but which will print or be part of the PDF saved for your records. These can vary and may include Filing Instructions, Federal voucher form, possible estimated tax payment vouchers, etc. Those are not included in the efiled return, however. By the way, there will be pages called "Filing Instructions" regardless of whether you efile or file by mail, but they change accordingly. The Filing Instructions pages have additional info such as your chosen refund method and banking information you entered for a refund deposit, or tax payment method if taxes are owed, etc.
NOTE: "Which" Filing Instructions you get in that list depends on what you have chosen so far for the filing method. i.e., the type of Filing Instructions will not be final until you actually select a filing method. If your Filing Instructions currently say "File by Mail Instructions", then when you later select efile, the Filing Instructions should then be titled "Electronic Filing Instructions."
