Does automation major need postgraduate entrance examination?

I am automation. I didn't take the postgraduate entrance examination until I worked for two years. I just graduated this year. . There must be a difference between going to graduate school and not going to graduate school. If I didn't go to graduate school, my salary would be the same as my current unit, but my development has been in a bottleneck period. . My present treatment is only the starting point, and there will be more room for improvement and more opportunities. . One more thing, after graduate school, the job choices are wider. It is difficult to find R&D jobs after graduation of automation undergraduate, which are basically technical support and after-sales, but it is easier to find R&D jobs after graduation.