I don't think any European carriers, LCC or not, have IFE on the seat backs, certainly not on the usual A320/737 aircraft which are so common. Most of them don't even have overhead screens with a moving map, and even the BA aircraft which have these screens often don't make use of it. I've lost count of the times I've flown BA shorthaul and they have used the screens for a safety briefing and then folded them up for the remainder of the flight!