When you are creating your resume, you don’t need to put every random job you’ve ever had. What companies do is they look at your jobs on the resume, and at most call the employer and ask them if you worked for them and how you did at the job.
There is no way for a non government employee to know if you worked other jobs. Keep off any jobs that you worked at for less than 2 years and use every skill you learned as a skill for your resume.
Nothing hurts your resume more than having 3 or 4 jobs in a span of 2 years because it shows you are unreliable.
I made a typo for one of my employment dates while filing the background check. Caught it right after submitting it and then asked around and everybody told me that they’ll call and ask about it if they can’t figure it out from just looking back at my resume.
Next morning they called me and said they had to close the role because of budget cuts. Two months later I got an email saying my hiring was being paused because my background check was flagged and I had 10 days from the check to dispute it. I decided to call the company and they told me that they had already hired someone else for the role.
So yeah, getting the dates right can be important.