Originally posted by MF:

The vid I saw seemed to show casual, easy, hard, nightmare and 'hammer' modes. I didn't see 'normal' - maybe I watched it too fast or missed it. My only concern is that I get to change..... nothing.

While there was no button to specifically choose "normal", at the beginning of the video I saw, normal was the default on all of the sliders, and none of the additional options available were selected.
https://twitter.com/jsmars/status/1647968860711145481?s=20