Forcing Thunderbird to use X11 when running Wayland doesn't launch systray-x-kde

I was using extra/thunderbird 115.14.0-1 with extra/systray-x-kde and it worked great but recently decided to can this version of thunderbird for version 129 from the AUR and so far the system tray from systray-x doesn’t seem to work.

Is it not possible to connect these two, or is there another way to get it working?

So far I have tried changing the exec line in the .desktop entry of the newer thunderbird to Exec=env GDK_BACKEND=x11 thunderbird %u with no luck.

What does it display if you run
GDK_BACKEND=x11 thunderbird
in a terminal?

I’ll need to reinstall it tomorrow to confirm, but I don’t expect to see any errors since Thunderbird launches without any issues. However, the systray-x-kde isn’t showing up in the system tray as I would expect.