The purpose of this clinical study is to look into how study medicines CagriSema (cagrilintide and semaglutide), cagrilintide, and semaglutide affects muscle health in people with excess body weight and slightly higher than normal blood sugar as they lose weight. Participants will either get CagriSema (a new study drug), cagrilintide (a new study drug), semaglutide (a drug that doctors can already prescribe to treat people with type 2 diabetes and excess body weight) or placebo (a placebo looks like the treatment being tested but doesn't have any active ingredients in it). Which treatment participants will get is decided by chance. Participants will be in this clinical study up to 15 months.