While Gif Your Game can record highlights via hotkey ... GYG actually records mp4s with audio, not gifs, but ... PUBG, and League of Legends. For PUBG and Fortnite, it can be set to auto-record ...

However, the tools for editing these are still quite sparse especially if you’d like to add your own audio clip to it. To overcome this specific hurdle, take a look at “Shabaam”.