It can be that Bruno Mars’ probably made better music as an independent artist because I really don’t remember much his music of his music when he was in a group or not as an individual. So for me that means that his music as an independent artist must’ve been much better. His other music did not leave a lasting impression on me.
However there are some people who liked his music better when he was not an independent artist. Some people believe that when and artist goes solo then his music is not as great. That depends on the public’s view of the solo artist. However I believe that Bruno Mars’ is a good independent artist as well as when he’s saying in a group.