After installing a fresh version of Craft 4, the setup didn't allow me to specify the site language fr-FR as it did with the previous version. I had to accept the default en-US.
I thought that I would be able to fix that afterward in the control panel, but the only choices available are English variants.
I don't mind if the CP isn't fully translated yet, but it seems to me that I should be able to setup multiple languages. What did I miss ?