Facebook Graph - Get a high quality video from API - php

Question

I am using this API call to get the Page's Post details and this one includes the Post's Video Source.
https://graph.facebook.com/v5.0/{page id}/posts?fields=from{id,name,picture},status_type,attachments,full_picture,picture,message,story,properties,created_time,shares,comments.limit(0).summary(true).as(comments),likes.limit(0).summary(true).as(likes),permalink_url
This API call responds with these data:
{
"from": {
"id": "123123",
"name": "abcd",
"picture": {
"data": {
"height": 50,
"is_silhouette": false,
"url": "https://scontent.fmnl4-6.fna.fbcdn.net/v/t1.0-1/cp0/p50x50/123123_123123",
"width": 50
}
}
},
"status_type": "added_video",
"attachments": {
"data": [
{
"media": {
"image": {
"height": 405,
"src": "https://fb.com/adsfasdf",
"width": 720
},
"source": "https://video-fb-source.com.fb.mp4?_nc_cat=1231&cb=3"
},
"target": {
"id": "240206797735633",
"url": "https://www.facebook.com/asd1asdfasdf"
},
"title": "test 123123",
"type": "video_autoplay",
"url": "https://www.facebook.com/hahahae/videos/240206797735633/"
}
]
},
"full_picture": "https://scontent.fmnl4-6.fna.fbcdn.net/v/t15.5256-10/145288627_240218977734415_42016794327.jpg?",
"picture": "https://scontent.fmnl4-6.fna.fbcdn.net/v/t15.5256-10/145288627_240218977734415_42016794327.jpg?",
"message": "haha hahahaha",
"properties": [
{
"name": "Length",
"text": "41:20"
}
],
"created_time": "2021-02-15T18:00:01+0000",
"shares": {
"count": 7
},
"comments": {
"data": [
],
"summary": {
"order": "ranked",
"total_count": 1,
"can_comment": true
}
},
"likes": {
"data": [
],
"summary": {
"total_count": 16,
"can_like": true,
"has_liked": false
}
},
"permalink_url": "https://www.facebook.com/xxxx/posts/xxx/",
"id": "xxxx_123123_xxx"
},
I get the Post's Video Source from the attachments.data[0].media.source json, then every time I get the video, I download it on my local.
My problem with that is it does not return a high-quality video, it's a bit pixelated. Unlike in Facebook, when you go directly to the video URL, there's a 1080p option.
How can I get a high-quality video that I can download through Facebook's Graph API?
Thanks.