Thanks for pointing out the difficulty finding this, it isn’t as easy as we’d like it to be! Here’s a way to get this information reliably:
Click into a Project from within your Workspace. Then, in the top left, click the three dots icon to click “Sharing Page”
Then you’ll see the URL for the specific project. You can copy this entirely, the Profile page is going to be universe.roboflow.com/PROFILE-PAGE/project-page
From there you can see the Profile page and copy that portion of the URL