And in the old familiar (but written off) Gopro Studio there was also an option to remove Fish-eye afterwards.
In Photoshop and Lightroom (Adobe) there are standard correction profiles for Gopro models, No idea if these also work on the Yi models.
The Gopro 5 and 6 also have Digital image stabilization (Hero 6 on 4K + F30).
I think the market for the Actioncam cameras will be smaller because the Hype is / has been saturated. In recent years, action cams have not only been used by athletes and / or difficult spaces, but by the masses because of the Hype. “The” ordinary tourist “also runs with a Gopro on top of the cap attached by a church or museum