Hello there @SL33P3R_C3LL!
Checking around the community, the main deal here is standalone Ray Traced Reflections are largely deprecated and not fully supported as a completely isolated reflection method, especially for complex lighting scenarios like emissive materials. Most of its previous, standalone functionality has been taken over by Lumen.
When you set your project’s “Reflection Method” to “Ray Tracing” in UE5.2, you’re not necessarily enabling an entirely separate, older ray tracing reflection system. Instead, you’re often telling Lumen to utilize hardware ray tracing for its reflections where applicable. If you disable SSR and reduce Lumen reflection, the result is basically cuting off the reflection pipeline.
And regarding commands that could adjust or enable certain features while SSR is shutdown, there are methods to apply from old documentation related to UE4, but I would not recommend trying to enforce it. Please check the data below, and experiment with your build, until you can find a middle ground: