The 2018 model was the revolution, for 2020 it’s nips and tucks, meaning business as usual.
Lovely screen and smooth performance; USB-C more practical for accessories; Trackpad support (and incoming Magic Keyboard) make for a true laptop replacement; LiDAR sensor adds future potential
LiDAR app support is few and far between; Doesn't feel much faster than 2018 model; Your Lightning accessories won't work (it's USB-C)