xdg-desktop-portal-kde VS Soundux

However, the actual dialogs and access points are provided by a backend, which differs from what desktop are you using. For example, Gnome uses xdg-desktop-portal-gtk, KDE uses xdg-desktop-portal-kde and so on.\ If there is an issue with the implementation of an portal, you need to find the backend you use and report it to them.

There is some code being worked on for the KDR settings portal: https://github.com/KDE/xdg-desktop-portal-kde/commit/77945523b854678d4ff9facb2acb5de8a43377f5

It looks like a kde specific issue. xdg-desktop-portal-kde has window sharing on its to do list.

I don't have any personal experience with any soundboard stuff, so you'll have to research that yourself. A quick web search led me to Soundux: https://github.com/Soundux/Soundux

instead, use Soundux, a completely free soundboard that is open source and on github.

https://github.com/Soundux/Soundux ?

I've used the Soundux program a few times in order to play sounds through discord calls with friends.

Soundux is the only method I found to make it work... barely.

My mistake, should have mentioned it's pretty early on in development. Try Soundux instead. If you've got your audio sorted by folders (ie, a Sound Effects folder, a Background Music folder, etc) you can set each one up as a separate tab and cue them by clicking or hotkey. To set volume, you'll have to right click, and there's no smooth crossfade option yet, but it's easy enough to set sounds to loop and control them at will.

Not a "real" solution, but you can use Soundux to mix the application sound with your microphone: https://github.com/Soundux/Soundux. Would still be great if Discord would fix the issue.

Ahh, I use Soundux which works insanely well.