Hi guys,
following this discussion #41435 (comment) (backend/frontend) and it's partial solution here #41513
Joomla 4.4 frontend (at least):

For all the fields that, when not yet setted, they redirect to a "site default value" like the "Basic Settings" fields (Time Zone, Frontend Language,...), they should just to show the default value and not the written "site default".
Because for a Front-end logged user the "site default" does not mean nothing.
A Front-end logged user is interested to know what are saved settings

Please, Do you agree ?