Content translation integrates [different translation services](https://www.mediawiki.org/wiki/Help:Content_translation/Translating/Initial_machine_translation#Machine_translation_availability). A [[ https://nbviewer.org/github/wikimedia-research/machine-translation-service-analysis-2022/blob/main/mt_service_comparison.ipynb | recent analysis ]] (T303812) shows that for some language pairs the default service provided is not the one used the most. This means that most users change the default, indicating their preference for a different one (which can be an indicator of higher MT quality). In those cases we may want to adjust the default service.
The proposed changes are:
- **ru → be** to use Yandex
- **pt → gl** to use Google
- **en → es** to use Google (this adjustment is also covered in T309169)
- **{en, fr, it} → ca** to use Google.
- **{ca?, en?, es?, fr?, gl?} → eu** to use Elia !!(Source pairs pending to be confirmed)!!