"Road VS. MTB style Frame Fit"
On average, most of the gravel bikes I see, have a top tube, Reach and chainstay length maybe 10mm longer than a standard road bike. There are bikes such as the specialized diverge or Whyte Glencoe, which tend to split the difference between a road/MTB more intimately, by offering a longer reach, top tube, and shorter length to compensate. The longer overall wheelbase paired with relatively shorter stem seems to offer an interesting compromise between the spectrum of high speed stability and low speed manevourabilty, agility.
What would you consider to be the sweet spot in terms of a truly capable multisurface bike; one that knows no compromise in the search of speed, stability and comfort?
After looking around, it seems as though light suspension, sort of like the Cannondale Topstone Carbon Lefty, or the hydraulic headset shock in Specialized bikes, and 650b wheels with thick cushioning tired seems to provide this balance. The idea of cushioning, dampening, bump absorption is what allows engineers to achieve more than ever before when it comes to a bike that truly does it all.