I broke the bone that runs along the top of your left foot when I was around 20 (Metatarsal Bone?), about 25 years ago.
Being a stupid youngun, I didn't go to the doctor, thinking that it was just a really bad sprain, and I could "walk it off".
It really really hurt but I tried to walk (even run) normally on it, and gradually over months the pain subsided until maybe 6 months later it was "normal".
Except, maybe 10 years later I noticed that I couldn't balance on my left foot as well as on the right, and see that the top of my foot is noticeably less convex (not quite concave though). Probably less structure for muscles and tendons to use for stability. But feels fine and I can walk and run okay :D