Just a tiny micropost here to help add some information that was missing from the internet.

I was trying to find a video or tutorial that would show me how to upload horizontal videos to Instagram stories. I could not find a solution that did not require downloading apps or editing things on my computer. After watching one lengthy tutorial, I realised* this can be done very simply on your phone in a matter of seconds.

Here is how you do it:

1. Shoot an amazing video holding your phone properly (horizontal)
2. Open the video using Google photos
3. Click the edit icon
4. Rotate the video left or right 90 degrees (your choice)
5. Save
6. Upload to Instagram

Enjoy!

*Apparently the voice-to-text dictation app on my phone is British.