If I began filing a return is the information still available? Where can I find it? If I filed an extension should it still be there?

So I put in the w2s that was available. Filed for the extension. Finally, this year, I have the other two w2s. I am now, not able to see the last year data or w2s. I do not have them available at the moment, and I wanted to wrap up filing for 2021, please help.