Hello, I have this weird problem on Kubuntu. The volume keys tend to get "stuck" when I press them, the volume just "slides" either to mute, or to max volume. The system behaves like the volume keys are still pressed, even though they are not. Rebinding the volume keys fixes it.
System details:
Kubuntu 20.04.2 LTS 64bit, KDE Plasma 5.18.5, running on VMWare on Windows 10 (however running the same version from a USB drive has the same issue), running on a Lenovo IdeaPad 720
Hope that's enough, thanks