In reply to Jon Greengrass:
Right tool for the job for you then.
But I have different needs, as I am interested in difficult/technical riding, as well as speeding around on easier trails.
I have a custom framed gravel bike with a long 475mm reach (to match my MTBs) and very slack-for-a-gravel-bike at 67 degree head angle, plus 180mm discs, SRAM Guide brakes, dropper post, wide bars, 1x with 9-46t wide range cassette, etc, etc.
I just love riding it. On a ride I'll try and incorporate some spicy stuff and near enough ride the same trails I ride on my full suss enduro bike ... a very different experience for sure, but still so much fun (I enjoy the raw physicality/brutality of it, like a Hardtail ... but harder!).
It is amazing where 700cc x 40mm or 45mm tyres can get you (running tubeless with liners).