Bug: Multi-Tenancy dropdown wrong z-index(?)

Hi,
today I've encountered a design "problem". If I use a custom page with a filament table, while the sidebar is collapsed on desktop, the multi-tenancy dropdown seems to have a wrong z-index, i think.
I've tried to manipulate it with custom styles, but doesn't work. Is this a bug?

(Some text in the screenshot is redacted because of client's privacy, sorry.)