Best workflow/software to convert 360 video frames to flat images?

This is a pretty specific/niche need, I know, but I'm hoping someone might at least know of some software that could help.

I need to turn some of my Insta360 videos into flat images, preferably multiple flat images per each frame of video. Not a single distorted image, but multiple "natural view" images per frame. The goal is to take a video of an area and turn that video into hundreds/thousands of flat images to use for photogrammetry.

Has anyone else done anything like this, or know of any good software that would help with this task?