Wigobi? Maunzaro? Which one should I choose?

My mother is overweight and needs to lose weight. She already suffers from back pain due to scoliosis, but as her weight has increased, her back pain has worsened. More importantly, recently, after hiking with friends, she complained of severe knee pain. We took her to the hospital, where she was diagnosed with arthritis and received a cartilage regeneration injection this week. During the consultation, it was revealed that her weight gain is also a contributing factor to her knee pain. Since she is currently experiencing both back and knee pain, losing weight through exercise alone seems difficult. I am looking into weight loss injections, but I am unsure whether she should get Wigobi or if Maunzaro is a better choice. What are the differences between the two injections? Which medication is better for a middle-aged woman? What are the side effects of each? I am curious and would like to hear the experiences of those who have actually received them.