'overflow: hidden' when using a Dialog breaks positioning of sticky elements

[christian-reichart]

On my page I work with position: sticky
Whenever a modal is opened and the body gets 'overflow: hidden' the sticky doesn't work anymore, leading to disappearing content, since it just get's reset to the normal flow.

Is there a way to prevent this?
A possible solution could be to disable this for headless UI and manage it myself. Something like 'overflow: clip' does basically the same thing without breaking sticky, I think it has moderate browser support: https://caniuse.com/?search=overflow%3A%20clip

[christian-reichart]

sorry, i overlooked this discussion:
#2181