No, not the electrical saws but the plain cardboard or wooden kind.
if you can only use one hand, you can while away hours doing them and be proud of the end result.
if, however, you’ve limited movement in one hand, they are great therapy: start with children’s wooden ones (if you can find them), large piece children’s jigsaws and eventually the regular pieces of very large jigsaws, using your affected hand.
Keep persevering and you will see improvements.
The best therapies come from hobbies!