I’d like to know if someone creates a fivem server, will the server manager be able to add mods/resources as well? if so how?
He copy paste them into server folder on the vps, or if you are hooked up with github, its easiest with remote desktop or ftp. Depending on your preferences
You would have to set up a RDC/FTP So that more than just the one person can use it at the same time
You can find a tutorial here : How to setup FTP