It reminds me of a cathedral in Riga https://www.google.com/maps/@56.953778,24.1165972,3a,75y,272.68h,105.62t/data=!3m6!1e1!3m4!1s8c3tjsZlQO83mlqcsaXbdg!2e0!7i13312!8i6656
Inside is rich, lots of gold and icons of Christ.
And same as the Cathedral of Sainte Marie-Majeure was built in the 19th century.
You're right, it does look like that one a lot. I've seen smaller churches with some similar details inside but never one this large in France.