When using my laptop in tablet mode, the taskbar has a bar behind it that's the normal/full height of the taskbar, as seen in photo:

I'm on Windows Version 22H2, most recent Start11.
Any tips to work this out, or is it just a bug in the program?
edit: For clarity; dark blue is the color of the taskbar. Light blue is the extra bar, which gets fully covered when the taskbar re-extends to full height upon leaving tablet mode. Black is just my desktop background.