Yeah the Domane would be a serious upgrade over the fx.
The entire geometry of the bike and your riding position are going to feel a lot faster.
A lot of bikes these days allow for 25mm or 28mm tires, letting you at least dabble a bit in gravel territory.
Good to hear you're having fun! Curious to hear what you'll land on!
Thanks.
Looking online I thought I wanted a Gravel bike for sure but after talking to my LBS they pretty much talked me out of it saying it wasnt necessary based on what I was doing and it would only slow me down on the road if I didnt change tires.
My other issue is I am a pretty big guy, 6'5 and 260lbs (and going down). So I was a little worried about the weight but I seem to be under the weight limits on the road bikes overall (275 lbs weight limits).