I created a post type (artiste). I then created another post type (lyrics). When adding lyrics, there is a drop-down to select from the artiste entries.
I am using elementor to build the front-end layout. However, in choosing the field whose values should be displayed, I realised that fields that are set to “post object” (I mean a field that allows you to pick another post type) are not showing in the elementor drop down.