Yes, Its the GI component of the light aspect in UE. Resources heavy and benefits for RTX cards.
You get all that beautiful bounce light and realtime AO but you can see even in Triple A gaming that the hardware to run this is pretty hefty.
The new 50 series nVidia cards, in particular the 5090 at ~$2000, are really suited and geared towards this tech. Apps like Twin Motion will benefit from that but the consumer needs to invest every year in GPU cards to leverage these benefits.
When you take the yearly cost of SketchUp, Twinmotion and GPU/CPU it means you need good paying project work to even consider staying competitive. Tech is moving so fast these days but its is also bringing with it rising costs.
I still prefer old path tracing engines rather than these realtime solutions. I feel they lack that physical correctness in materials. There's something I just like when it comes to authoring my own physically correct material and seeing the results.
I've the same fondness with SketchUp as it has simpler approach to 3D that works.