Could be a bandage or something that is rigid/semi-rigid
https://www.orthoticshop.com/images/D/procare_bunion_splint.jpgCuz 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.
Yeah basically what I was thinking. I'll do any exercise with extreme caution and any sign of pain I'll stop.
Curling where you used to squat activates the region of your brain that produces leg gains.