I am also brand new to jupyterlabs and I came to find a solution to another issue.
But I noticed there is a toggle at the bottom "Simple". Did you try toggling it on? That shows the name of the current path/document etc at the top of the page.
Hope that help, unless I totally misunderstood your question.
I realized how much of a marketing cesspool Reddit has become once I left it. That along with the whole doom scrolling has been toxic to my mental health. So I am much better off without it.
That said, the fediverse seems to be a little too small especially for niche topics. Plus the this world still needs some tool/interface to unify it and make it easier to use. I still go back reddit once in a while for those niche communities but I have logged out for the first time in a decade+ from reddit.
I have started focusing on my hobbies more, the whole reddit fiasco has been a reminder that it is not just FB that is bad, it is everything including Reddit and in time possibly places like this if it grows.