linux: discord not shown on app selector but its showing on volumen control (nobara linux)

[neoyagami]

Describe the bug:

Hi. im switching to nobara (latest release 41, KDE plasma nobara themed) from windows,
The app selector for volume dial control does not show names on the apps (it displays the new widow and show some apps with icons but not any name ) and after trial and error (select each no name app and testing) the volume control do not work.

the volume control on the "taskbar" works fine and shows a volume control for Discord(Canary) and works as intended.

No arrors are shown on the terminal where the jar is runing.
Steps to reproduce:
runing as the normal user (not root)
Install the jar in a directory owned by my user
copy java fx on a separate folder near the folter where the jar is located
make sure that I have java with gui capabilities is installed (not headless)
Install discord canary. try to control the volume of the whole application.

Expected behavior:

I expect the knob to contorl de volume of the whole app and it does nothing nor show the app names propely on the proccess selector.

Additional context:

I used pc panel for years in windows and would like to control the volume of the apps acordingly but I understand this is a third party OSS proyect and I apreciate your hard work until now.

thanks in advance