[Feature Request]: Add "Volume/Normalized" stat from YT Stats for nerds #5653
Description
Describe the feature you'd like to request
Add the "Volume / Normalized" field to the advanced video statistics panel (bug button) as in YouTube's "Stats for nerds" implementation.
On YouTube, it shows as: Volume / Normalized: 100%/72% (first % is player volume, second is normalized volume after loudness adjustment).
This helps users see how much YouTube has normalized the video's audio (e.g., due to exceeding -14 LUFS reference).
Describe the solution you'd like
Fetch/parse the exact "Volume / Normalized: X%/Y%" value from YouTube's Stats for nerds data and display it in the client's advanced stats section, matching YouTube's format and behavior.
No changes to the value calculation — just mirror what YouTube exposes (player volume % / normalized volume %)
Describe alternatives you've considered
No existing features in the client provide this specific YouTube stat.
Additional information
Example from YouTube (right-click video → Stats for nerds):
Volume/Normalized: 100%/62%(player at 100%, normalized down by ~4dB)- Content loudness relates to YouTube's -14 LUFS target
Relevant for audio enthusiasts monitoring loudness normalization.