That is ... pretty rich.
A couple of years ago I was going to go see my brother in the UK who lived near Stansted. As such Ryanair would have been the most convenient airline. The shere number of dark patterns I encountered trying to book the ticket was such that when I got to the payment page and they tried to coax me into using my local currency instead of GBP and hid a £20 spread in the exchange rate I rage quit. I should have known better even then, but now I will only use them if I have literally no other choice. With luck that means "never."
I'm always happy to see the various EU competition authorities pushing back on this kind of thing.