Hi there, @Rick_Flint 
Glad to say that the Auto Translate option is available for Google Reviews app staring with the Pro plan. Check this post for more details - Reviews: [Major Update] Enjoy automatic review translation! 🚀
With this feature enabled, reviews will be automatically translated into the language set in the widget’s settings. I see that you have French and English reviews in the widget, and the same language versions are used on your website.
To implement your use case, you can create 2 separate widgets with English and French translations and install them to the needed language version of your website.
Please let me know if this explains things or if you have any questions left 