The only reference I can find to this idea is here : https://community.alteryx.com/t5/Alteryx-Connect-Gallery/Share-Results-in-a-Collection/m-p/231 . It references that the feature of "sharing workflow results" was "on the Roadmap" in 2014. I did some searching through the current Ideas page and cannot find anything. I also reviewed the release notes since Alteryx 10.5 and cannot see that this was added.
A user approached me today with a problem of "Many people need access to the results of this data, and I want everyone to be able to see all the results". While you could potentially email these results to a specified user set, that would require maintaining both a collection and an email tool in the job, and could potentially cause notification fatigue if users only care when they go to the Alteryx Gallery. Similarly, results could be saved to a networked location, but that would require a user to go to two locations in order to find this information.
As such, having a toggle that allows users with permission to view a workflow, to also see the results of any/all users, would be huge.