Is it harder for fresh graduates to find a job if they miss the school recruit?

No, school recruitment may not be a good opportunity, because school recruitment is basically a large number of positions, which is not really suitable for you. Sometimes job hunting really needs to consider the corporate culture of the enterprise, and you don't have to go to some big enterprises to develop. School recruitment often involves some large and medium-sized enterprises, but some small companies will give you more personalized development, so it is not so serious to miss school recruitment. Go to the job search website to submit your resume and pay attention to some popular industries at present.