+1000 for this

An ISO saved elsewhere is always better than files on the computer you may have issues with later.

As an FYI, there is no notice that it is the ISO being downloaded at step 6, but that is what happened for me. There is an additional "verification" and "getting files ready", but after that you can save the ISO.

I won't be installing this for a few more weeks (watching any issues) but I snagged the ISO ASAP.