90 cm? ... Then there will be a railing added .. and then you should check what else you can get up the stairs.
And, in my opinion, the landing depth should correspond to the tread width of the staircase.
I somehow see a floor height of 298 cm for you.
And these are not steps, but risers, which are normally specified. Therefore 298/16 risers .. would be a riser height of 18.625 cm. And it should not be more than that. The last sample already had 17 risers.
However, I find a tread depth of 26.75 cm to be the lower limit.
It is best to go up and down various stairs in different places, and for those where you feel comfortable, simply measure the riser height and tread depth. Then you can better visualize it.