One is that you have little work experience and are young, that is, your position can be filled by many people except you. Then you'd better leave your job and look for it, because you are not worth waiting for a month by the employer and leaving this position idle for a month!
Second, it doesn't matter how mature the work experience is. I believe that, first, even if you are eager, you will show the psychological activity you are eager for and will not be depressed. Second, because your experience is needed by the employer and has irreplaceable characteristics, there is no problem in applying for a job. If you are engaged in the technical industry, it also belongs to this range.
Third, it really takes a month for many large companies to join the company from one side to the other, so you can leave first and find it within this month, seamlessly connecting. However, if you want to choose a good departure time, the Spring Festival is better. If you have been working for a year or two, avoid the freshman schedule from July to September.