I can't install downloaded version of Turbo tax to my Macintosh

I'm not sure how I messed up and now I'm not sure what I did.  I probably clicked on the dmg file and got a picture showing a checkmark with TurboTax premier 2020 underneath on the left, then "Drag TurboTax here" with an arrow to the Applications folder.

On my desktop I have what looks like a picture of a CD with a red checkmark in the lower left and "TurboTax Premier 2020" on the bottom.

I thought that is what I was supposed to drag into the Applications folder but it is just a 2KB alias.

I am running on OS10.15.7 Catalina.

Please help.  I am a senior trying to use TurboTax for the first time.