Remote Desktop
Will Apple Remote Desktop ever be updated and will the Price ever drop. Also is Classroom available to be downloaded and used on the student side of a mac ?
We are users, like you. We do not know what Apple might decide.
For screen sharing without all the baggage and complexity and capabilities and power of Apple Remote Desktop, the jn-build screen sharing client can work.
There are also third-party RDP/VNC clients that might work, such as the free Microsoft RDP client available for macOS.