For those wanting a better way to block out in UE5, this is for you. With the new modeling tools in UE5, you can use booleans like in the old BSP days, but now textures will work on them. Super quick and easy to use.
https://dev.epicgames.com/community/learning/tutorials/DP3x/unreal-engine-quick-overview-of-boolean-modeling-in-ue-5