Interface not translate in multi-domain, mutli-language setup

Hi All,

I'm trying to achieve multi-country/multi-language setup in Drupal 10 with:

Domain setup:
localhost
localhost/de
localhost/ch

Languages:
English(default)
German
French

Language detection:
Country Path/URL Prefix:
English/(default/empty)
German/de
French/fr

When I visit localhost/de I get redirected to localhost/de/de with interface translation in De.
However, when I visit localhost/ch interface stays En or localhost/ch/fr I'm getting redirected to localhost/ch with interface En. Any ideas why is that?
PS. not sure if this is related, but Domain Switcher does not redirect to appropriate domain, but stays on same or there is redirect to default.
However typing entering domain url does have effect and right domain is selected in switcher/dropdown.

Thanks,