BelongsTo ->withSubtitle() without ->searchable()

[mrleblanc101]

Currently, there is no way to use ->withSubtitle() without ->searchable().
From the docs, this is not very clear. I understand why, native select can't have subtitles (multiline options).
But I believe it could be implemented another way, suffixing the option with the subtitle like so: Option value - Option subtitle

if($this->withSubtitle) {
    $subtitle = $this->subtitle ? ' - ' . $this->subtitle : '';
    return $this->label . $subtitle;
}
return $this->label;

[mrleblanc101]

I guess it only makes sense if your subtitle is very short 🤔
Which mine are, because they are abbreviation.
So I would understand if this is not something you guys wanna do.