According to my years of experience, there is no absolute conflict between the two, and the effect can be achieved at the same time. However, people who concentrate on gaining muscle will definitely gain muscle faster than you, but at the same time they will gain weight. People who are also dedicated to fat reduction will have a better fat reduction effect than you, but at the same time they will lose a little muscle.
First of all, for beginners, the effect of doing two exercises at the same time is much better than that of experienced ones, because novices have a lot of room for improvement in gaining muscle and reducing fat. For example, even if you eat so much at first, you will feel that your muscles will brush up. When they reach a certain stage, they will reach a balance point, and it will be much more difficult to think of two simultaneous exercises in the future.
It takes a lot of calories to gain muscle, but it takes a gap in calories to lose fat, that is, it takes more calories than you eat every day. It is a very contradictory thing, so generally we suggest that after reaching a certain stage, we should concentrate on increasing muscle and then reducing fat, so that the effect will be better. Although we concentrate on gaining muscle, we also increase fat to a certain extent, but the consumption of muscle is also great, and it will be much easier to lose fat later, so that we can get twice the result with half the effort and achieve our perfect goal soon.
Judging from our usual training arrangements, the two are not contradictory. When we do strength training, we will also consume a lot of calories, and fat will also burn. After strength training, fat will continue to burn. What's more, the muscles mentioned above will naturally consume more calories and help us lose fat. So, the point is what we eat. If we eat 3000 calories a day and we eat 5000 calories, it is estimated that we want to gain muscle and lose fat at the same time.
Therefore, we can gain more muscles, do strength training, and at the same time achieve high protein, medium carbon water and less fat, so that we can basically control the growth of our fat, and at the same time our muscles will continue to grow. Of course, the effect, again, is better than just thinking about muscle gain directly.