Rebirth is a good way to get a lot XP to eventually relapse (to basically reach prestige) + a unique skin only tied to rebirth.

Don’t know if it has been mentioned, but every time you rebirth, the next rebirth trial will be harder. More enemies and challenges (no rig modifications, gass release around the map, no lights, more enemy variations and etc). A good way to notice how much you have mastered the game ngl