This patent claim has five technical features. Is it infringement that others plagiarize four?

If a claim has five technical features and only four technical solutions are adopted by others, it is impossible to investigate the infringement of others. If others only use four technical features to achieve the technical effect of five technical features in your patent, it proves that the writing level of this claim is not high. If the patent agent wrote it from the beginning, it proves that you have found a poor patent agent. Of course, maybe you wrote it yourself. Now that you are authorized, you can't sue others for infringement, which proves how important it is to find a professional patent agent to write the patent claim for you.