It depends on the game or the footage captured, some have a lot of edits where as others there's hardly any if not none. First thing first, I need to get a good capture I want to make into a gif, sometimes it happens organically as I'm playing other times I'll replay a certain section or action over and over to get the perfect shot, while I'm playing I'm always conscience of what the camera is doing if I have control over it, keeping it steady, making sure everything's in frame so in post I can zoom and crop to focus on certain parts of the screen. Once I have footage I like then I'll make edits to it, the gif you quoted for instance, I zoomed in quite a bit, moved the camera to keep the car in frame and added a camera wobble. Then for the image I increased the exposure and reduced the saturation a touch. For Nier it's similar, zoomed in, mess with the camera to focus on certain things, add a wobble if need then mess with the color balance. I also slow down the footage from 30fps to 24fps, same for the Horizon gifs, it's only a small slow down but you can appreciate the animations a little more that way. For my FFXV gifs I did add motion blur in post, some more subtle than others, trying to replicate the CG look that the pre-rendered cutscenes have. That's the main gist of it, I should probably make a video some day as I do get PMs from time to time asking me what I did to certain clips but for now I'll just leave it as that.