I do not really see that. I would like to see heatmaps if there were any. Mount is pretty much playing the same Box to box role lamprd did. Also Ashley Cole and Wayne Bridge pushed up high a lot just as Chilwell. And Lampard played e.g. with young Robben on the wing who had a lot less positional discipline than Werner, who is often enough found at our own corner flag. Additionally, Lampard played double pivot from 2012 onward so basically a dm and still scored a lot more than Mount does now. Mount is just not very effective yet at the Tools a midfielder has for scoring goals which are long shots and late runs. Lampard mastered those. He didn’t need to attack the box all game but made it count when he did. Maybe one day Mount will master them too. Regardless of position.