Phantom "winit window" appears in KDE panel

[codewiz]

When starting cosmic-term in the Wayland session of Plasma 6.2.4, two distinct apps show in the panel: "COSMIC Terminal" and "winit window":

It does not happen with cosmic-store nor alacritty.

[rzeigler]

This also happens in gnome sessions.

[Omar-Eldahan]

I am using Cosmic-Term on the KDE Spin of Fedora 41 on Wayland and this also happens to me.

[secretmango]

I suppose this happens because the terminal is a wrapper for alacritty?

Is there a standardized option to spawn wayland surfaces without registering them as windows? The plasma panel, and I suppose the COSMIC panel and dock too, do this, afaik.

maybe this could also be fixed by having the visible window as subsurfaces of the "winit" window?