In Unreal Engine, you can disable Real Time in the View Port so the scene only updates when you move things around or makes changes on the scene. That helps prevent the GPU from working unnecessarily while I’m just interacting with the interface, for example.
Additionally, when working with path tracing, making quick changes in the settings, my PC is in a constant lag as it keeps trying to render the full Path traced frame. It would be much better if we could pause rendering and trigger it manually when I want.