Auto translate on Strapi

Question

I'm using Strapi for a project on which I need to implement an auto-translate functionnality on some Collection.

To do so I install the strapi-plugin-translate and I follow the process as indicated using the provider strapi-provider-translate-deepl. Next I create a free account on deepl website to get an API key

However when I go to the collection and I choose translate from another local. The text is just copy from this local but not translate:

I check that the checkbox field "Enable localization for this field" is check and that the field "Configure automated translation for this field?" is at "Translate".

What trigger me as something wrong is that the API call is made to the endpoint "localhost:1337/translate/translate" when I click the "Translate from another locale" button.

That does not seems right to me but I follow the exact same config as on the strapi-provider-translate-deepl.

Here is a copy of my config/plugin.js file (I replace each API key letter by a X):

module.exports = ({ env }) => ({
    translate: {
        enabled: true,
        config: {
            // Add the name of your provider here (for example 'deepl' for  or the full package name)
            provider: 'deepl',
            providerOptions: {
                // your API key - required and wil cause errors if not provided
                apiKey: 'XXXXXXXX-XXX-XXXX-XXXX-XXXXXXXXXXXX:fx',
                // use custom api url - optional
                apiUrl: 'https://api-free.deepl.com',
                // use custom locale mapping (for example 'en' locale is deprecated so need to choose between 'EN-GB' and 'EN-US')
                localeMap: {
                    // use uppercase here!
                    EN: 'EN-US',
                },
            },
            apiOptions: {
                // see <https://github.com/DeepLcom/deepl-node#text-translation-options> for supported options.
                // note that tagHandling Mode cannot be set this way. 
                // use with caution, as non-default values may break translation of markdown 
                formality: 'default',
                // ...
            },
            // Which field types are translated (default string, text, richtext, components and dynamiczones)
            // Either string or object with type and format
            // Possible formats: plain, markdown, html (default plain)
            translatedFieldTypes: [
                'string',
                { type: 'text', format: 'plain' },
                { type: 'richtext', format: 'markdown' },
                'component',
                'dynamiczone',
            ],
            // If relations should be translated (default true)
            translateRelations: true,
        }
    },
    // enable a custom plugin
    'drag-drop-content-types': {
      // my-plugin is going to be the internal name used for this plugin
      enabled: true
    }
});

I even try add the env variable DEEPL_API_KEY=XXXXXXXX-XXX-XXXX-XXXX-XXXXXXXXXXXX:fx and DEEPL_API_URL=https://api-free.deepl.com inside my .env file but no change.

So as I didn't find a lot of information on how to solve this problem I decided to try to use strapi-plugin-deepl that is completly outdated but I just wanted to test. I follow the process and arrive to an error (Fail to translate local):

Would really appreciate your input on this problem.

Thx everyone.