Hi Almudena,
Regarding the first issue you need to change the paragraph widget of the landing pages in order to be able to add more sections and modify translations. I have provided the steps to do that in a similar post here How to modify sections in a translated Landing Page
I have applied the changes for you.
As for the second issue I don’t see any problem. When I switch to French the view is in French as well as the items’ URLs of the view. Everything seems fine.