Bethesda revealed in June 2021 that they were working on a new iteration of the engine called Creation Engine 2, and that it would power their upcoming games Starfield and The Elder Scrolls VI. Creation Engine 2 features real-time global illumination and advanced volumetric lighting.
Creation Engine is static. Others, you are right, change.
https://en.m.wikipedia.org/wiki/Creation_Engine
Case and point