What form to use if I convert all my money in a traditional IRA to Roth?

I also contributed $6000 to the traditional IRA earlier this year. I assume I'll continue to use Form 8606, and given that I also contributed I'll use both Part I and Part II.

 

However, the 3rd criteria from Part I puzzled me: "You converted part, but not all, of your traditional, SEP, and SIMPLE IRAs to Roth IRAs in 20xx AND you made nondeductible contributions to a traditional IRA in 2020 or an earlier year." So my question is: should I still fill out Part I of Form 8606 if I converted all of my traditional IRA to Roth? Or is there another form to fill out if I did both contribution to IRA and convert all IRA to Roth? Thanks.