To download instagram reels videos you can use instagrab.app. By using this awesome tool you dont need to install any applications to download instagram reels videos.
steps to download instagram reels with Instagrab :
1- open instagram app and goto your desired reels video. click on the share button and select Copy Link
2- open your web browser and goto https://instagrab.app/ website. paste the copeid link into address field and click on download button
3- now you can download the reels video on your device. you can also copy the captions of the instagram reels into your clipboard