DXC - Commerce Config files

Commerce 12.11.0

I've configured the Find search provider as per below documentation.

https://world.episerver.com/documentation/developer-guides/commerce/search/Configuring-Episerver-Find-search-provider/

Mediachase.Search.config files on both Commerce Manager and frontend sites is currently setup to use a demo index for local environment.

Additionally web.config has the following

<episerver.find
            serviceUrl="http://..."
        defaultIndex="myindex"/>

The episerver:FindServiceUrl and episerver:FindDefaultIndex AppSetting is defined on each DXC environment, do these AppSettings take precedence over what's specified in the Mediachase.Search.config ?

Do I need to do anything else to ensure the correct Find index is used on Commerce Manager and frontend sites for the relevant DXC environment ?