Finally found one: https://meaningcrafters.com/produit/powerbank-alex/
I don't speak French but placing the order was quite straightforward. Shipping costs were a bit high, but totally worth it. Highly recommended!
Phone cases by Mobiwear are Made in Poland. I have this one for another phone model: https://mobiwear.de/product-ger-236894-Hulle-fur-Samsung-Galaxy-S22-Farbe-Schwarz-mit-Schwarz.html (Sorry, website doesn't seem to be available in english. But look around, the cases are also available elsewhere.) I've been using it daily for almost 2 years and it still looks and feels almost like new.
Phone cases by Mobiwear are Made in Poland. I have this one for another phone model: https://mobiwear.de/product-ger-236894-Hulle-fur-Samsung-Galaxy-S22-Farbe-Schwarz-mit-Schwarz.html (Sorry, website doesn't seem to be available in english. But look around, the cases are also available elsewhere.) I've been using it daily for almost 2 years and it still looks and feels almost like new.