Experimental Physics and
Industrial Control System

Depending on what you're looking for, you might find the StripChart tool at https://github.com/pyepics/epicsapps/tree/master/StripChart useful.

This can connect to multiple PVs and gives a real-time plot their recent history, and supports saving images or plaintext files of the data.  If it is missing features or there are things you don't like about it,  it is only 700 lines of Python, which means that a) you don't need to rely on unsupported X11 apps at all, and b) that you could probably get a summer intern to modify or completely rewrite it.