Available in filter but not in search - end part of the date field

While its a feature request for calculation fields: ⭐ Allow usage of date field end date in calculation fields I was told (or think I was told) its available in automations.

That’s only partly true. Its available for filters in automation (see “gültig / Start” and “gültig / End”):
Bildschirmfoto 2024-09-29 um 18.10.38

its not available in search:
Bildschirmfoto 2024-09-29 um 18.10.57

I don’t even know, which date will be used for the search operation.