Glad to hear that you like the search feature! Clicking on a workspace in the search results is very similar to what will happen when someone opens the workspace URL from a calendar invite, etc.
Your point about workspace naming is one we have considered carefully. We think it’s important to have a name to use as a handle to reference later or your workspaces quickly turn into your tab graveyard. The last thing we want is for people to say “I have no idea what any of this is.”
If you don’t want to give it a name, that’s fine, just don’t close the window. When you’re ready to close it, take a moment to give it a name you can remember it by, then shut it.