Retirement tax questions

I used a CPA to file my taxes for 2022. I can’t find the tax return, but the tax return transcript on IRS.gov shows “IRA deductions” as blank, so I assume we didn’t take a deduction that year. I would’ve assumed we did, since we were below the income limit that year but if we did take the deduction, wouldn’t it show up on the transcript?  I can’t find a form 8606 anywhere on the IRS website so I can’t tell if it was filed by our CPA or not.

Is there a way to track down past years’ 8606?