Once I have deployed licenses to my school’s computers can the students sign into the hub with their own accounts. How does that work?
yes, they can, and if they do, there’s the possibility of trashing the school license file. depending on how your systems are set up you may want to deny write access to the license file, or make a safety copy elsewhere on the system that can be relocated on login, or by tech support etc.
I used to use a .bat script to do the authorisation, so added some lines that made the safety copy as well.
note that there should be a difference between logging in to Unity/Unity Hub, and logging in to the Unity Asset Store for the purpose of downloading assets that the user owns.