https://github.com/laravel/framework/pull/42690

// before...

User::with([
    'avatar',
    'posts.tags',
    'posts.author',
    'posts.featureImage',
    'posts.comments.tags' => fn ($q) => $q->latest(),
])->get();

// after...

User::with([
    'avatar',
    'posts' => [
        'tags',
        'author',
        'featureImage',
        'comments' => [
            'tags' => fn ($q) => $q->latest(),
        ],
    ],
])->get();