Bathtub in front of the window - parapet height?

In most countries, railings are, in my opinion, 90cm. Added to that is the height of the tub. If there is still a wide tub edge in front of the window, it also counts like a bench at a floor-to-ceiling window.

There are now really very, very nice solutions. I wouldn't want a classic French balcony (Zinc) either But that's not what this is about

The bathtub stands without a rim directly at the window, as additional information.