This version of Freddy is much more serious and dark than his original counterpart, he doesn't show any comedic moments, and he has an irrational hatred towards IPs other than FNaF, which is why after the failure of Fazbear & Friends in his universe, he became more bitter and lost all his emotions in the process, which led him to become a time killer. On the other hand, he believes that the best way to prevent each Fazbear & Friends universe from collapsing is to send all the other IPs to their home universe, when in reality, it is only to kill them all to undo the decline of the series and convince his present self to follow in his footsteps, this is also explained by Future Freddy himself, that with the other IPs dead, the world would be left in devastation.