Could be a bandage or something that is rigid/semi-rigid

Cuz tbh, working out ur legs on a broken foot is kinda hard considering that in an unconscious way, ur also contracting the muscles that attach all around ur foot. Avoiding toes movements and inversion/eversion of the foot is kinda important for a time, as you don't want to create more dmg or alter the healing process.
You can do leg curls/extension, but you should focus on the moving ankle/foot/toes at all.
Also, you can work your abductors/adductors on a machine as well, with the avoidance of move also.
For light deads, you could, but you may shift ur weight toward, which will cause pain, so its up to u to try it.
Same things goes for Good mornings.
As for glutes, u could try kickbacks with the cable attach to ur ankle and not by pushing with ur foot.