I see some Dez in Lamb, in how Lamb just blows through tackles and has that "my ball" mentality going up for passes. But he's nowhere near the physical specimen that Dez was. Lamb's a full 25 pounds lighter than Dez at the same speed and doesn't have his ridiculous plant-and-go first step. Dez had an unreal combination of size, strength and explosion, while Lamb is physically kind of middling.
The Hopkins comparison is lazy, but it really fits Lamb. Average athletes with great ball skills who love getting physical and dirty. Dez was an excellent athlete with great ball skills who loved getting physical and dirty, he just had come-and-go focus and zero nuance to his game.