Linux client permanently shows unwanted input box

Here on Debian 13 I have Zoom Workplace version 7.1.0(3715). My desktop comes from LXQt.

When I launch the client, a small input window appears, with the instruction, “Type or paste link”. I recognize this as a user-input element normally found on the screen that comes up when I select “Join a meeting” on the main startup screen. But this little input window comes up prematurely. It doesn’t move when I try to reposition the initial screen, and it just stays in front of all the other windows as long as Zoom is running. I don’t expect to see this at all, so this feels like a bug.

I tried completely removing my directory ~/.zoom and then reinstalling the client, but the problem persists. Suggestions welcome … thanks!