RPM version of VLC not working properly, but Flatpak version works fine

I'm facing an issue with the RPM version of VLC on my Fedora system:

The audio output is very low.

When using earphones, the right side speaker has noticeably higher volume than the left.

I have already installed RPM Fusion and followed the official multimedia setup guide from here: https://rpmfusion.org/Howto/Multimedia

Despite that, the problem still exists. Interestingly, the Flatpak version of VLC from Flathub works perfectly on the same device—no audio issues at all.

Has anyone else experienced this? Any suggestions on what could be wrong with the RPM version?