There is an RM saying in fitness, which probably refers to the maximum number of times you can do under a certain weight. For example, 1RM is the maximum weight you can finish again. So it depends on what your needs are. Choose different RM according to different goals.
1. If you want to enhance muscle strength, you should choose a weight of 3-6RM and limit yourself to 3-6 repetitions;
2. If you want to increase muscle mass, you should choose the weight of 8- 12RM and limit the number of repetitions of 8- 12;
3. If you want to carve lines, you should choose 15RM or above and do 15 times or more.
Therefore, what suits you is good. Choosing the right weight and scientific fitness under the premise of safety is the best.