No widget after authentication with Linux Flatpak + strange windowing error with popup

[AlecHCodes]

Describe the bug
Overlayed produces strange popup, fails to load taskbar widget, with this error message:

libEGL warning: wayland-egl: could not open /dev/dri/renderD129 (No such file or directory)
libEGL warning: wayland-egl: could not open /dev/dri/renderD129 (No such file or directory)

(overlayed:2): Gtk-CRITICAL **: 13:34:49.435: gtk_widget_get_scale_factor: assertion 'GTK_IS_WIDGET (widget)' failed

To Reproduce
Steps to reproduce the behavior:

1. On linux, run flatpak install flathub dev.overlayed.Overlayed to install with flatpak
2. Follow authorization procedure as normal
3. See error

Expected behavior
Widget appears in taskbar, windowing appears normal

Screenshots

Desktop (please complete the following information):

• OS: Arch Linux
• Version: KDE Plasma 6.3.5, flatpak

Additional context
I attempted to run a native AUR package, and the widget worked, but the popup box still appeared as follows.

[Hacksore]

Hopefully someone who knows tauri and arch can fix this 🙏.

Related issue flathub/dev.overlayed.Overlayed#2