>>76776270 (OP)
>squad
Yeah that's about the most you can do for quads at home. I prefer just using one leg to stand and sit down from a chair. Adding weight is easy since it's basically a one legged front squat.
For glutes just hip thrusts but put your feet on the wall to minimize stress on the knee. Seems silly to minimize knee stress on an unweighted exercise I know you'll be doing high high repetitions of squats avoiding stress where able is a good idea.
Single leg calf raises is pretty self explanatory get a brick or something to step up on so you can get a little calf stretch in there.
Hamstring is the tricky one Google something called "slick floor bridge curl" not ideal but it'll be enough until you can get rings or weights to do rdl or more difficult leg curls.
