Although the planes are ex-LX and WK is owned by LX, the experience is slightly different and the branding is completely independent in terms of amenity kits, pillows, menu, cutlery etc.

If you need details, why not watch a trip report on YouTube, Google returned this recent flight as the first hit:

I haven’t flown WK long-haul, but we regularly take their Euro-J for family trips to Crete and haven’t had any complaints. However, since it’s a WK flight, lounge access rules and mile earning max be different from a „real“ LX flight.