Agent License Limitations

I recently got my current position on the security department and have been making an effort to stand up SEM. I have added servers, added an agent to my laptop, and set up 2-3 rules, and noticed that our system resources are not where they need to be. I checked the large company size and saw the following:

Does this mean that if we have 1000+ workstations that we cannot install one on all endpoints? Or can we use some of the server agents for the workstations?