Toe overlap would be a concern, but the front center is 5mm longer than my CFR-1056. The rear center is 20mm longer, and the wheelbase is 25mm longer. With fatter tires the difference should be negated. On my 1056 I can make contact with my front wheel on very slow, very tight turns...and there's likely to be a few more of those on gravel.
Your build looks good. I'm sorry you're unhappy.
For reference, I have 170mm cranks, size 44EU shoes with cleats as far forward as possible (which I don't even like), 46mm WAM tires on 700c rimes, size 54 frame. I had a road bike with some toe overlap before and it rarely bothered me, but on a gravel bike, even on my short time on it toe overlap is a big deal, sharp slow speed corners happen all the time. I can't even get out of my driveway on the bike, I have to carry it and place the bike on the street
Another small regret I have with the frame is going overboard with painting. I asked for two chameleons fading. Realistically, you never notice it on the bike. You really have to walk around and play with angles to even notice it. I should have kept it simple with just a glossy color or two and spend the money elsewhere. But if you want some "elaborate" paint job, I'm happy to report their painters are skilled and the paint is well done. Just my taste to blame
Only very frustrating issue I had with building it was the front derailleur requiring the sticky plate on the frame, which is a pain to set up and could have easily been fixed if they had made a better FD mount.
My ultimate advice for anyone considering a 696 - have a serious look at the 707. I wrongly assumed the 707 would be racier and less comfortable than the 696 because it has internal cable routing
https://geometrygeeks.bike/compare/carbonda-696-2020-540,carbonda-cfr-707-2021-m/Can't go wrong with carbonda, but if I had to buy again I would 100% get a 707 instead. With simpler custom paint