I don’t think they are harder mechanically. It’s because we were used to over be geared at the end of EW.

That being said, visually some dungeons are really hard on the eyes (like vanguard where everything glows and is pink and purple - I have to rest after that one) and the netcode can play bad tricks on the first boss of Stayborough (I had adds pass right through me with no effect and got stunned by adds that looked about 5 ft away when I was sure I was clear of them).