Here is the relight project of Cathedral Of The Dead, made by Nicolas Mendoza. I've been strongly inspired by the Souls series, to be exact by the Fool's Idol Cathedral from Demon's Souls Remake. Initial idea was to use UE5, but I've encountered some issues and stability problems (mainly with GI and volumetric fog), so at the end I've got back to UE4. Scene is fully dynamic, fully RayTraced - RT shadows, Rt reflections, RT Translucency and... RTXGI, which does amazing job!
https://www.artstation.com/artwork/8lVn5q