I have one matrix question at my survey. I have the "mobile friendly" option selected and in the preview it looks fine - there is a question and under the question individual points 1-5 appears and after selecting one of them, the question collapses itself and the next one unfolds. I like this. But when I link to the survey after publication, there is something completely different. it looks like an ordinary matrix table, but with cut options to choose from that you have to move with a bar below that you can't even see.
The problem appears not only on the phone but also in the view for computers. Before selecting the mobile friendly option, the usual matrix question is visible, but after selecting the mobile friendly option it is cut off in the same way as in the phone view.