Quality for webp not working

[projct1]

public function registerMediaCollections(): void
{
    $this
        ->addMediaConversion('')
        ->format('webp')
        ->quality(20);
}

Trying set quality 20/100/800/etc, but file size and visual quality image are not changing :"(

[projct1]

By the way, just checked, for jpg too.

[timvandijck]

This will be fixed in an upcoming spatie/image release later this week.