SpongeBob says....A few months later

https://www.forbes.com/sites/solrogers/2020/01/29/virtual-production-and-the-future-of-filmmakingan-interview-with-ben-grossman-magnopus/?sh=53a07f2c75d4 [www.forbes.com]

...since one you will probably say, "well, what does Forbes know about VFX anyway?".

True...true...

https://www.dneg.com/virtual-production/ [www.dneg.com]

Daryl Dunlap
....and go!

80.lv: Gods of Mars Will Be Shot Entirely In Unreal Engine.
https://80.lv/articles/gods-of-mars-will-be-shot-entirely-in-unreal-engine/ [80.lv]

TLDR;

Gods of Mars is the first Hollywood production to use real-time rendering of game engine animation/images as finished Final Pixel shots. This is done by our cross-medium creative team that merges game programmers with traditional matte painters and miniature makers with Hollywood pedigrees. To push Unreal Engine to meet the high-quality standards equal to current VFX/animation software

They are just using UE4 for the render part right? Other VFX elements are baked files.
But UE4 cannot afford reflection like those in offline renders, the traditional approach would require reflection capture cube to be updated every frame. Although it would not cause availability issues in cinematic tools, it will add unnecessary brightness control challenges to reflected region.

A few moments later....

Deadline: How ILM’s Stagecraft Team Is Pushing The Boundaries Of VFX And “Moving The Tech Forward Right Now”.
https://deadline.com/2021/07/stagecraft-ilm-disney-plus-mandalorian-vfx-cannes-magazine-disruptor-1234787530/ [deadline.com]

TLDR;

Basically, once Madalorian showed the way, everyone is building game engine powered Studios, all over the world.

Daryl Dunlap
A few moments later....

Deadline: How ILM’s Stagecraft Team Is Pushing The Boundaries Of VFX And “Moving The Tech Forward Right Now”.
https://deadline.com/2021/07/stagecraft-ilm-disney-plus-mandalorian-vfx-cannes-magazine-disruptor-1234787530/ [deadline.com]

TLDR;

Basically, once Madalorian showed the way, everyone is building game engine powered Studios, all over the world.

For specific elements. Zero of it being used for anything like proper destruction, etc.