Latest version 2024.1.5.1
At the bottom, there is a horizontal rule across entire area.
No matter if there is ssh session or RDP (like on screenshot below), rule is visible.

Hi,
I apologize for the inconvenience.
I've tried to replicate the issue by opening multiple entry types, but I haven't seen the horizontal rule in any of them.
Could you please share the version of macOS you're using?
Best regards,
Jesse Galarneau