I wouldn't want to hit 30-40 mph descents on loose gravel on a few CX bikes. Which has more to do with wheel base, and HTA/trail.
Gravel is also a very diverse environment. What California, Nebraska, Ohio, Australia all call gravel is as diverse as what manufactures call 'gravel bikes'. I wouldn't know, but I bet gravel across Australia has it's own diversity going on?
What I find interesting is a few years ago Trek called their Crossrip a gravel/adventure bike. They now call the Crossrip an Urban/Commuter. With gravel bikes being Domane gravel, Boone, and Crockett. Yet, their boone and crockett are also their CX bikes. Good job Trek on not even knowing what you were selling! lol
My Point..... It might be best to go research wheel base, trail, rake, HTA, STA etc... Then take a look at your environment. Pull from what you liked dislikes about your previous geometries, and Go shopping. the labels kind of gets you close enough. But the Ultimate bike for you will be the one that has the geometry you need/want.