I have published the flutter package flutter_insta to pub.dev
Using this package you can get details of the Instagram user such as profile picture URL, a number of followers, following, Bio, website, and download reels video.
Flutter_Insta Package link: https://pub.dev/packages/flutter_insta
Github link: https://github.com/viralvaghela/flutter_insta
String downloadLink = await flutterInsta.downloadReels(“https://www.instagram.com/reel/CDlGkdZgB2y/"); //URL