I did some reverse Engineering and it seems, there is no reference (documentkey) to the record.
Instead the link can be found in a JSON object in field inputs of table sys_flow_action_report. I created a Script Include that returns the flow context sys_id based on either a GlideRecord, or the combination of tablename and sys_id.
This I use in a UI Page containing links to the context records. On it's turn the UI page is opened from a UI action.
Should be pretty easy. there already is something similar, but not on the record itself yet. But if you go to flow designer->Active flows. There you have your contexts. Then if you click on a record, you have a UI Action that is pretty much the same as "show workflow" but it's named "Open in operations view". Let me get back to you if there also is a thought about putting a OOB UI Action for it like the "show workflow" as well.
Who else beside admin users should see that? For the normal users, I would say the stage is the thing that should give them a overview how things are going.
I agree that normal users should see how things are going. For many use cases, the normal user should see what the flow has already done and what are the next steps. A full view of the flow is very useful.
