According to TurboTax IRS Forms Availability table, Form 1116 should be available in TT on 3/3/22. So just a little longer. Even though a form is available with the IRS, TurboTax still must assimilate the form into the software. Here's a link to the Forms Availability table.
Intuit Federal Forms Availability for TurboTax Online
*** I am NOT a tax expert. I am a seasoned TurboTax user, and volunteer to provide assistance to TT users. Nothing I post is to be considered TAX ADVICE; I bear no legal liability for responses.***
