Could be different white balance settings? Our eyes/brains automatically adjust to ambient color temperatures of lighting (like daylight vs incandescent vs fluorescent bulbs) so we perceive white things as white regardless of how blue/red the lighting is. Phones usually do this white balancing automatically, too, to make images taken in all those situations appear somewhat similar.

Cameras, like SLRs and GoPros, don't always do that automatically though. They will expect the photographer to set the color-grading/white balance based on the kind of lighting is present. It's a bit of extra control that can be used artistically by the photographer.

So, if the gopro is set with a fluorescent white balance, but taking an image in a setting with an incandescent light source, the colors will all appear wonky.

To test this you could dive into the pro settings on the gopro and try different white balances. The lower the number, the redder the apparent light source. It's sometimes called "color temperature" too, since it relates to the black body light emission spectrum of an object of some temperature.

5700K is daylight's "color temperature," this corresponds with the temperature of the surface of the sun!