One of the extremely useful things about reddit was that content was somewhat organized by URL. Each post was created in a subreddit. So you could do websearch like keyword site:reddit.com/r/subreddit...
I was thinking about how there are similar communities on different instances. In some cases that is desirable/ok but maybe it would be cool to have another option....
If you ever have the problem of forgetting you were writing something and closing a window, or accidentally navigating away from the page on which you are composing, this is the browser extension to save your ass: Form History Control....
If you are looking for assistance in trying to interact with pages found on instances other than the one on which you have an account, here is what I believe is available so far....