The video details how all of Halo 2’s assets were made with stencil shadows in mind after the bungie devs saw it in Doom 3. However, the OG Xbox ended up not having the processing power to do those critical, deep shadows, so they returned to the flat lighting of the first Halo, which resulted in a much less stylized game. The video creator shows how the game was meant to be experienced by showing all of the different character models in one of the few places in the game that retained a small section of dynamic shadows, which really drives his point home of how much better it would’ve looked overall.