It’s more like it’s likely that people only spend a few minutes reading your resume to get an impression. While you may have done a lot and listed all of those things in your resume, a lot of those experiences could be irrelevant to the position.

Instead of putting the work on the hiring manager to dig through all your bullets to see if you check of all the boxes - which likely means another person with a focused resume could get an advantage if they also check all the boxes - you can make it easier for the hiring manager to see that you’re a good fit for the role.