Some of it, yes, but most of it, no (especially for video)
Just linking this video to show some of the differences that can be observed as being part of the 'look' between various lenses
Most of the M lenses are more like the Cooke, but with the Leica color.
I think that Leica has long ago moved from being 'the best and the sharpest' to having 'a look' that its aficionados like.
I would disagree with this, I've yet to see a FF lens like the Apo-Summicron-M 50mm f/2, giving the same impression of sharpness and micro-contrast.
The Summicron-SL lenses are also world-beaters in terms of MTF charts.
But others are so so close as well with the practical advantages (f/1.2 with fast Eye-Tracking AF), that is probably doesn't matter anymore.
Especially, when these new RF lenses, which look cheap in comparison to Leica are already called way too expensive by many - or one could also just move to medium format for less money as well.
So in the end, most of the buyers will be the aficionados anyway.