2022-P Nickel With Doubling Of Stairs

Interesting find.

The first image makes it look like doubling, but I'm wondering if you're not catching the shadows from the step edges at an odd angle.

I think navigating those stairs would be somewhat difficult.

This probably just a difference in die or hub state rather than a die variety. The first coin just looks a touch sharper.

I think what we are seeing is an optical illusion from super bright illumination. The extra steps are actually the grooves between the steps, which are not usually illuminated in photos. The lighting puts the edges of the steps in shadow, which makes them seem like the grooves themselves.

An additional complication is the small bit of Machine Doubling or Die Deterioration Doubling on the left edge of the steps that appears to create an edge folded back on itself.

I think if this coin were illuminated only from K12 low to the coin, it would look completely normal. That's just my 2¢, but I have looked at 50000+ nickels while coin roll hunting over the last three years.

Full disclosure--this nickel was taken out of a 2022-P Uncirculated Set from the U.S. Mint. I was evaluating the coin for its potential grade as a MS coin when I noticed the difference in the stairs from other nickels I have in my collection. And that's when I wondered if it might be a new variety.
Thanks to all for your input!