Problem with UI language


I just experienced a problem as I wanted to switch from English to French (my default MacOS language):

I used the new App language option in the System Preferences (MacOS 10.15)

A few UI parts have switched to French, but all main menus and almost all other parts remain in English.

Can I do something to solve this issue, or is it a bug? (Corel"Draw" bug or MacOS bug?)