You cannot change your race, subrace, or body type .
: The difficulty of the journey shifted; Explorer mode became more forgiving for those seeking a story, while Tactician mode grew more perilous, granting bosses like Raphael more HP and deadlier abilities. Baldur-s Gate 3 Update v4.1.1.3732833 -Patch 3-
No more restarting 15 hours in because you decided the nose slider was two millimeters off. For a nominal gold fee (scaled to your level), you can now change your appearance, voice, pronouns, and even your morphable body type directly from your camp chest area. You cannot change your race, subrace, or body type