sweetspot
You're welcome! I don't know that the focus of modern Ti is comfort- the material (as used in bikes) certainly has some liveliness that you don't always feel in other materials, but the frame shouldn't be the first stop when it comes to comfort. Good tires, a reliable gage, and a willingness to experiment with pressures are a lot less expensive and more effective there.
That said, titanium is particularly well-suited to gravel bikes. There's the liveliness, a slight springiness (or 'planing') that can be built in and does add something to the ride. But moreso you have durability, and longevity. In a sport where it's not uncommon to have rocks kicked into the downtube or a bike topple over at a rest stop, you don't need to worry about actually
using a Ti frame. You can strap bags to a (raw) Ti frame or knock a muddy wheel out of true and not worry about wearing through the finish, let alone causing structural damage. And I personally take pleasure in the thought that Ti frames are disproportionately passed on rather than retired due to wear or crash damage- you can be reasonably certain that the Ti frame you buy today will be someone's town/errand/commuter bike in fifteen or twenty years' time.
What a lot of us missed was the moment where many off-the-peg carbon frames became more expensive than Ti- which just isn't the case any more. Both materials can be had across the price spectrum, but there's a lot more overlap than people seem to realize. Maybe it's nostalgia or trickle-down prestige from the custom builders, but many riders tend to connect emotionally with Ti in a way that they don't with carbon. And if you're looking at a mid-range or higher carbon frame I think that it's absolutely worth taking a good look at what you can get in Ti- our GRX bikes aren't much more than a good quality carbon frame with similar parts and our AXS builds are close to or less than most similar premium brands'.