Development tools for Zephyr on STM32Workbench for Zephyr: VS Code extension to set up, build, flash and debug Zephyr applications on STM32.Devicetree manager: browse, edit and visualize Zephyr devicetree, STM32CubeMX-like for Zephyr.
This seems to be some kind of bug in the Target Status Widget. Disabling the widget doesn't seem to cause problems with debugging, so I'm going to leave it off.