Referencing this item:
https://support.zendesk.com/hc/en-us/articles/4418444462618-Resizing-the-ticket-properties-panel
I had a client today ask about the ability to have these save across sessions. They and their agents recently discovered this feature and they all had the same request: have it save across sessions.
They really liked the feature but having it resize each time you do a refresh or reload was kind of cumbersome, so the request to see about it being possible to save this state was a consistent message from their entire agent team.