Staircase floor plan design, tread and stringer

Yes, then just post the floor plan. But also the ground floor and upper floor, because otherwise you can't judge what else is possible.

And the exit of a straight staircase is in a completely different place than the exit of a spiral staircase. I simply cannot imagine arbitrary swapping there.

Ok. Here are the floor plans of the upper floor and ground floor.

So I also didn't think of a completely straight staircase, but one like in the other floor plan. And then the question is, which looks better...

Oh man... I feel really dumb... There is just so much to consider...
But many thanks for taking a look!

@knt09: By the way, your suggested changes to the rooms on the upper floor and the bathroom will be implemented.

Another staircase will not be possible - as soon as it turns a quarter, you will no longer be able to access the dressing room.

Another staircase will not be possible - as soon as it turns a quarter, you can no longer enter the walk-in closet.

What means is that the door of the walk-in closet cannot be moved.

If it is acceptable to the planner that the first steps of the staircase from the first example receive a concrete ceiling, the one-quarter-turn staircase would work.
Because: Basically, you can say that the less a staircase is turned, the more comfortable it is. You just have to complete one turn as a person or with furniture, whereas the planned two-quarter-turn staircase has two turns -> this can be impossible for bulky furniture.

Ah ok... Because of the slope. Right?

What do you mean by: "first steps of the staircase get a concrete ceiling"? Sorry, but somehow it's all too complicated for me...

Just a quick note about the dressing room: Should it really stay like this? I find it very inconvenient without direct access from the bedroom. As it is currently planned, you have to cover almost a half marathon distance just to quickly go from the bedroom to the dressing room and then possibly back to the bathroom.